10661655156 has 12 divisors (see below), whose sum is σ = 24877195392. Its totient is φ = 3553885048.

The previous prime is 10661655133. The next prime is 10661655161. The reversal of 10661655156 is 65155616601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10661655156² (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 3 ways as a sum of consecutive naturals, for example, 444235620 + ... + 444235643.

It is an arithmetic number, because the mean of its divisors is an integer number (2073099616).

Almost surely, 2^10661655156 is an apocalyptic number.

It is an amenable number.

10661655156 is an abundant number, since it is smaller than the sum of its proper divisors (14215540236).

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

10661655156 is a wasteful number, since it uses less digits than its factorization.

10661655156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888471270 (or 888471268 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 10661655156 in words is "ten billion, six hundred sixty-one million, six hundred fifty-five thousand, one hundred fifty-six".