66770104 has 64 divisors (see below), whose sum is σ = 139968000. Its totient is φ = 29715840.

The previous prime is 66770083. The next prime is 66770117. The reversal of 66770104 is 40107766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248082 + ... + 248350.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 2^66770104 is an apocalyptic number.

It is an amenable number.

66770104 is an abundant number, since it is smaller than the sum of its proper divisors (73197896).

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

66770104 is a wasteful number, since it uses less digits than its factorization.

66770104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 66770104 is about 8171.2975713775. The cubic root of 66770104 is about 405.6897335914.

The spelling of 66770104 in words is "sixty-six million, seven hundred seventy thousand, one hundred four".