1657090318922 has 16 divisors (see below), whose sum is σ = 2532584390112. Its totient is φ = 812896141200.

The previous prime is 1657090318907. The next prime is 1657090318931. The reversal of 1657090318922 is 2298130907561.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6617297 + ... + 6863147.

It is an arithmetic number, because the mean of its divisors is an integer number (158286524382).

Almost surely, 2^{1657090318922} is an apocalyptic number.

1657090318922 is a deficient number, since it is larger than the sum of its proper divisors (875494071190).

1657090318922 is a wasteful number, since it uses less digits than its factorization.

1657090318922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309493.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 1657090318922 in words is "one trillion, six hundred fifty-seven billion, ninety million, three hundred eighteen thousand, nine hundred twenty-two".