66056120 has 32 divisors (see below), whose sum is σ = 160060320. Its totient is φ = 24389760.

The previous prime is 66056119. The next prime is 66056147. The reversal of 66056120 is 2165066.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 66056120.

It is a congruent number.

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, 62996 + ... + 64035.

It is an arithmetic number, because the mean of its divisors is an integer number (5001885).

Almost surely, 2^66056120 is an apocalyptic number.

It is an amenable number.

66056120 is an abundant number, since it is smaller than the sum of its proper divisors (94004200).

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

66056120 is a wasteful number, since it uses less digits than its factorization.

66056120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127055 (or 127051 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66056120 is about 8127.4916179594. The cubic root of 66056120 is about 404.2385122334.

The spelling of 66056120 in words is "sixty-six million, fifty-six thousand, one hundred twenty".