66070666590 has 32 divisors (see below), whose sum is σ = 162257268096. Its totient is φ = 17209103520.

The previous prime is 66070666553. The next prime is 66070666703. The reversal of 66070666590 is 9566607066.

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, 25607496 + ... + 25610075.

It is an arithmetic number, because the mean of its divisors is an integer number (5070539628).

Almost surely, 2^66070666590 is an apocalyptic number.

66070666590 is an abundant number, since it is smaller than the sum of its proper divisors (96186601506).

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

66070666590 is a wasteful number, since it uses less digits than its factorization.

66070666590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51217624.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 66070666590 in words is "sixty-six billion, seventy million, six hundred sixty-six thousand, five hundred ninety".