316157221455 has 32 divisors (see below), whose sum is σ = 542387404800. Its totient is φ = 156689674752.

The previous prime is 316157221451. The next prime is 316157221493. The reversal of 316157221455 is 554122751613.

It is not a de Polignac number, because 316157221455 - 2² = 316157221451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316157221451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7826895 + ... + 7867184.

It is an arithmetic number, because the mean of its divisors is an integer number (16949606400).

Almost surely, 2^316157221455 is an apocalyptic number.

316157221455 is a deficient number, since it is larger than the sum of its proper divisors (226230183345).

316157221455 is a wasteful number, since it uses less digits than its factorization.

316157221455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15694183.

The product of its digits is 252000, while the sum is 42.

The spelling of 316157221455 in words is "three hundred sixteen billion, one hundred fifty-seven million, two hundred twenty-one thousand, four hundred fifty-five".