10661560600 has 24 divisors (see below), whose sum is σ = 24788128860. Its totient is φ = 4264624160.

The previous prime is 10661560543. The next prime is 10661560661. The reversal of 10661560600 is 606516601.

It is a super-2 number, since 2×10661560600² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26653702 + ... + 26654101.

Almost surely, 2^10661560600 is an apocalyptic number.

10661560600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10661560600 is an abundant number, since it is smaller than the sum of its proper divisors (14126568260).

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

10661560600 is a wasteful number, since it uses less digits than its factorization.

10661560600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53307819 (or 53307810 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 10661560600 in words is "ten billion, six hundred sixty-one million, five hundred sixty thousand, six hundred".