10515501660 has 24 divisors (see below), whose sum is σ = 29443404816. Its totient is φ = 2804133760.

The previous prime is 10515501641. The next prime is 10515501677. The reversal of 10515501660 is 6610551501.

10515501660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10515501660² (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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87629121 + ... + 87629240.

It is an arithmetic number, because the mean of its divisors is an integer number (1226808534).

Almost surely, 2^10515501660 is an apocalyptic number.

10515501660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10515501660 is an abundant number, since it is smaller than the sum of its proper divisors (18927903156).

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

10515501660 is a wasteful number, since it uses less digits than its factorization.

10515501660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175258373 (or 175258371 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 10515501660 in words is "ten billion, five hundred fifteen million, five hundred one thousand, six hundred sixty".