66210671160 has 64 divisors (see below), whose sum is σ = 220702240800. Its totient is φ = 17656178688.

The previous prime is 66210671141. The next prime is 66210671167. The reversal of 66210671160 is 6117601266.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66210671167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30652009 + ... + 30654168.

Almost surely, 2^66210671160 is an apocalyptic number.

66210671160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66210671160 is an abundant number, since it is smaller than the sum of its proper divisors (154491569640).

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

66210671160 is a wasteful number, since it uses less digits than its factorization.

66210671160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61306197 (or 61306187 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 66210671160 in words is "sixty-six billion, two hundred ten million, six hundred seventy-one thousand, one hundred sixty".