66272794090 has 32 divisors (see below), whose sum is σ = 124502593536. Its totient is φ = 25351455360.

The previous prime is 66272794073. The next prime is 66272794171. The reversal of 66272794090 is 9049727266.

It is a happy 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, 1239510 + ... + 1291870.

It is an arithmetic number, because the mean of its divisors is an integer number (3890706048).

Almost surely, 2^66272794090 is an apocalyptic number.

66272794090 is a deficient number, since it is larger than the sum of its proper divisors (58229799446).

66272794090 is a wasteful number, since it uses less digits than its factorization.

66272794090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57894.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 66272794090 in words is "sixty-six billion, two hundred seventy-two million, seven hundred ninety-four thousand, ninety".