10611661256 has 32 divisors (see below), whose sum is σ = 24076880640. Its totient is φ = 4280333568.

The previous prime is 10611661241. The next prime is 10611661283. The reversal of 10611661256 is 65216611601.

It is a super-3 number, since 3×10611661256³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 5572400 + ... + 5574303.

It is an arithmetic number, because the mean of its divisors is an integer number (752402520).

Almost surely, 2^10611661256 is an apocalyptic number.

It is an amenable number.

10611661256 is an abundant number, since it is smaller than the sum of its proper divisors (13465219384).

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

10611661256 is a wasteful number, since it uses less digits than its factorization.

10611661256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11146733 (or 11146729 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 10611661256 in words is "ten billion, six hundred eleven million, six hundred sixty-one thousand, two hundred fifty-six".