15166451640 has 64 divisors (see below), whose sum is σ = 45846725760. Its totient is φ = 4013509760.

The previous prime is 15166451617. The next prime is 15166451669. The reversal of 15166451640 is 4615466151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466674 + ... + 498113.

It is an arithmetic number, because the mean of its divisors is an integer number (716355090).

Almost surely, 2^15166451640 is an apocalyptic number.

15166451640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15166451640 is an abundant number, since it is smaller than the sum of its proper divisors (30680274120).

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

15166451640 is a wasteful number, since it uses less digits than its factorization.

15166451640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964932 (or 964928 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 15166451640 in words is "fifteen billion, one hundred sixty-six million, four hundred fifty-one thousand, six hundred forty".