10531161660 has 48 divisors (see below), whose sum is σ = 29538454176. Its totient is φ = 2803433472.

The previous prime is 10531161659. The next prime is 10531161677. The reversal of 10531161660 is 6616113501.

It is a super-2 number, since 2×10531161660² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 117477 + ... + 186716.

It is an arithmetic number, because the mean of its divisors is an integer number (615384462).

Almost surely, 2^10531161660 is an apocalyptic number.

10531161660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10531161660 is an abundant number, since it is smaller than the sum of its proper divisors (19007292516).

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

10531161660 is a wasteful number, since it uses less digits than its factorization.

10531161660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304782 (or 304780 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 10531161660 in words is "ten billion, five hundred thirty-one million, one hundred sixty-one thousand, six hundred sixty".