2197696536 has 160 divisors (see below), whose sum is σ = 7132398240. Its totient is φ = 619218432.

The previous prime is 2197696507. The next prime is 2197696559. The reversal of 2197696536 is 6356967912.

2197696536 is a `hidden beast` number, since 2 + 19 + 7 + 6 + 96 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 327810 + ... + 334446.

It is an arithmetic number, because the mean of its divisors is an integer number (44577489).

Almost surely, 2^2197696536 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 2197696536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3566199120).

2197696536 is an abundant number, since it is smaller than the sum of its proper divisors (4934701704).

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

2197696536 is a wasteful number, since it uses less digits than its factorization.

2197696536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735 (or 6722 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 2197696536 is about 46879.5961586701. The cubic root of 2197696536 is about 1300.1373693103.

The spelling of 2197696536 in words is "two billion, one hundred ninety-seven million, six hundred ninety-six thousand, five hundred thirty-six".