2015655000 has 160 divisors (see below), whose sum is σ = 6376708800. Its totient is φ = 530704000.

The previous prime is 2015654989. The next prime is 2015655011. The reversal of 2015655000 is 5565102.

It is an interprime number because it is at equal distance from previous prime (2015654989) and next prime (2015655011).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1244191 + ... + 1245809.

It is an arithmetic number, because the mean of its divisors is an integer number (39854430).

Almost surely, 2^2015655000 is an apocalyptic number.

2015655000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015655000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3188354400).

2015655000 is an abundant number, since it is smaller than the sum of its proper divisors (4361053800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015655000 is a wasteful number, since it uses less digits than its factorization.

2015655000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2015655000 is about 44896.0465965546. The cubic root of 2015655000 is about 1263.1998537780.

The spelling of 2015655000 in words is "two billion, fifteen million, six hundred fifty-five thousand".