10611556560 has 120 divisors (see below), whose sum is σ = 38876913504. Its totient is φ = 2572496640.

The previous prime is 10611556511. The next prime is 10611556577. The reversal of 10611556560 is 6565511601.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×10611556560² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 662002 + ... + 677841.

Almost surely, 2^10611556560 is an apocalyptic number.

10611556560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10611556560 is an abundant number, since it is smaller than the sum of its proper divisors (28265356944).

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

10611556560 is a wasteful number, since it uses less digits than its factorization.

10611556560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339873 (or 1339864 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 10611556560 in words is "ten billion, six hundred eleven million, five hundred fifty-six thousand, five hundred sixty".