10621147107656 has 32 divisors (see below), whose sum is σ = 20104749984000. Its totient is φ = 5259916305216.

The previous prime is 10621147107629. The next prime is 10621147107673. The reversal of 10621147107656 is 65670174112601.

It is a super-2 number, since 2×10621147107656² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10621147107656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131135 + ... + 4610801.

It is an arithmetic number, because the mean of its divisors is an integer number (628273437000).

Almost surely, 2^{10621147107656} is an apocalyptic number.

It is an amenable number.

10621147107656 is a deficient number, since it is larger than the sum of its proper divisors (9483602876344).

10621147107656 is a wasteful number, since it uses less digits than its factorization.

10621147107656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482501 (or 4482497 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 10621147107656 in words is "ten trillion, six hundred twenty-one billion, one hundred forty-seven million, one hundred seven thousand, six hundred fifty-six".