32297840656 has 45 divisors (see below), whose sum is σ = 63180322303. Its totient is φ = 15994724000.

The previous prime is 32297840611. The next prime is 32297840657. The reversal of 32297840656 is 65604879223.

The square root of 32297840656 is 179716.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×32297840656² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32297840657) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 128676531 + ... + 128676781.

Almost surely, 2^32297840656 is an apocalyptic number.

32297840656 is the 179716-th square number.

It is an amenable number.

32297840656 is a deficient number, since it is larger than the sum of its proper divisors (30882481647).

32297840656 is an frugal number, since it uses more digits than its factorization.

32297840656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 32297840656 in words is "thirty-two billion, two hundred ninety-seven million, eight hundred forty thousand, six hundred fifty-six".