10621232256 has 192 divisors, whose sum is σ = 31534181280. Its totient is φ = 3156074496.

The previous prime is 10621232213. The next prime is 10621232267. The reversal of 10621232256 is 65223212601.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×10621232256² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2354355 + ... + 2358861.

Almost surely, 2^10621232256 is an apocalyptic number.

10621232256 is a gapful number since it is divisible by the number (16) 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 10621232256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15767090640).

10621232256 is an abundant number, since it is smaller than the sum of its proper divisors (20912949024).

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

10621232256 is a wasteful number, since it uses less digits than its factorization.

10621232256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4548 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 10621232256 its reverse (65223212601), we get a palindrome (75844444857).

The spelling of 10621232256 in words is "ten billion, six hundred twenty-one million, two hundred thirty-two thousand, two hundred fifty-six".