10515066660 has 72 divisors (see below), whose sum is σ = 36452235456. Its totient is φ = 2403443520.

The previous prime is 10515066647. The next prime is 10515066743. The reversal of 10515066660 is 6666051501.

It is a super-2 number, since 2×10515066660² (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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171386 + ... + 4173905.

It is an arithmetic number, because the mean of its divisors is an integer number (506281048).

Almost surely, 2^10515066660 is an apocalyptic number.

10515066660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10515066660 is an abundant number, since it is smaller than the sum of its proper divisors (25937168796).

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

10515066660 is a wasteful number, since it uses less digits than its factorization.

10515066660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8345313 (or 8345308 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 10515066660 in words is "ten billion, five hundred fifteen million, sixty-six thousand, six hundred sixty".