66056156 has 12 divisors (see below), whose sum is σ = 116897760. Its totient is φ = 32656800.

The previous prime is 66056153. The next prime is 66056189. The reversal of 66056156 is 65165066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66056153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92420 + ... + 93131.

It is an arithmetic number, because the mean of its divisors is an integer number (9741480).

Almost surely, 2^66056156 is an apocalyptic number.

It is an amenable number.

66056156 is a deficient number, since it is larger than the sum of its proper divisors (50841604).

66056156 is a wasteful number, since it uses less digits than its factorization.

66056156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185644 (or 185642 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 66056156 is about 8127.4938326645. The cubic root of 66056156 is about 404.2385856689.

The spelling of 66056156 in words is "sixty-six million, fifty-six thousand, one hundred fifty-six".