10621466656 has 12 divisors (see below), whose sum is σ = 20911012542. Its totient is φ = 5310733312.

The previous prime is 10621466633. The next prime is 10621466657. The reversal of 10621466656 is 65666412601.

It can be written as a sum of positive squares in only one way, i.e., 10509530256 + 111936400 = 102516^2 + 10580^2 .

It is a super-2 number, since 2×10621466656² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10621466657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165960385 + ... + 165960448.

Almost surely, 2^10621466656 is an apocalyptic number.

10621466656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10621466656 is a deficient number, since it is larger than the sum of its proper divisors (10289545886).

10621466656 is an equidigital number, since it uses as much as digits as its factorization.

10621466656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331920843 (or 331920835 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 10621466656 in words is "ten billion, six hundred twenty-one million, four hundred sixty-six thousand, six hundred fifty-six".