10661560356 has 48 divisors (see below), whose sum is σ = 25243723008. Its totient is φ = 3501561600.

The previous prime is 10661560237. The next prime is 10661560379. The reversal of 10661560356 is 65306516601.

It is a super-2 number, since 2×10661560356² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923701 + ... + 935171.

It is an arithmetic number, because the mean of its divisors is an integer number (525910896).

Almost surely, 2^10661560356 is an apocalyptic number.

It is an amenable number.

10661560356 is an abundant number, since it is smaller than the sum of its proper divisors (14582162652).

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

10661560356 is a wasteful number, since it uses less digits than its factorization.

10661560356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12612 (or 12610 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 10661560356 in words is "ten billion, six hundred sixty-one million, five hundred sixty thousand, three hundred fifty-six".