657041066 has 16 divisors (see below), whose sum is σ = 1075852800. Its totient is φ = 298462080.

The previous prime is 657041039. The next prime is 657041087. The reversal of 657041066 is 660140756.

657041066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 28535 + ... + 46133.

It is an arithmetic number, because the mean of its divisors is an integer number (67240800).

Almost surely, 2^657041066 is an apocalyptic number.

657041066 is a deficient number, since it is larger than the sum of its proper divisors (418811734).

657041066 is a wasteful number, since it uses less digits than its factorization.

657041066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19309.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 657041066 is about 25632.8122920603. The cubic root of 657041066 is about 869.3556977100.

The spelling of 657041066 in words is "six hundred fifty-seven million, forty-one thousand, sixty-six".