215154016 has 96 divisors (see below), whose sum is σ = 546497280. Its totient is φ = 80908800.

The previous prime is 215153993. The next prime is 215154059. The reversal of 215154016 is 610451512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69951 + ... + 72961.

It is an arithmetic number, because the mean of its divisors is an integer number (5692680).

Almost surely, 2^215154016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215154016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273248640).

215154016 is an abundant number, since it is smaller than the sum of its proper divisors (331343264).

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

215154016 is a wasteful number, since it uses less digits than its factorization.

215154016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 215154016 is about 14668.1292604067. The cubic root of 215154016 is about 599.2156566040.

The spelling of 215154016 in words is "two hundred fifteen million, one hundred fifty-four thousand, sixteen".