66167275080 has 32 divisors (see below), whose sum is σ = 198501825600. Its totient is φ = 17644606656.

The previous prime is 66167275079. The next prime is 66167275103. The reversal of 66167275080 is 8057276166.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275696860 + ... + 275697099.

It is an arithmetic number, because the mean of its divisors is an integer number (6203182050).

Almost surely, 2^66167275080 is an apocalyptic number.

66167275080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66167275080 is an abundant number, since it is smaller than the sum of its proper divisors (132334550520).

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

66167275080 is a wasteful number, since it uses less digits than its factorization.

66167275080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551393973 (or 551393969 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 66167275080 in words is "sixty-six billion, one hundred sixty-seven million, two hundred seventy-five thousand, eighty".