66500015160 has 32 divisors (see below), whose sum is σ = 199500045840. Its totient is φ = 17733337344.

The previous prime is 66500015129. The next prime is 66500015167. The reversal of 66500015160 is 6151000566.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66500015167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277083277 + ... + 277083516.

Almost surely, 2^66500015160 is an apocalyptic number.

66500015160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66500015160 is an abundant number, since it is smaller than the sum of its proper divisors (133000030680).

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

66500015160 is a wasteful number, since it uses less digits than its factorization.

66500015160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554166807 (or 554166803 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 66500015160 in words is "sixty-six billion, five hundred million, fifteen thousand, one hundred sixty".