157044057517 has 2 divisors, whose sum is σ = 157044057518. Its totient is φ = 157044057516.

The previous prime is 157044057503. The next prime is 157044057553. The reversal of 157044057517 is 715750440751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106279912036 + 50764145481 = 326006^2 + 225309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157044057517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157044057817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78522028758 + 78522028759.

It is an arithmetic number, because the mean of its divisors is an integer number (78522028759).

Almost surely, 2^157044057517 is an apocalyptic number.

It is an amenable number.

157044057517 is a deficient number, since it is larger than the sum of its proper divisors (1).

157044057517 is an equidigital number, since it uses as much as digits as its factorization.

157044057517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686000, while the sum is 46.

The spelling of 157044057517 in words is "one hundred fifty-seven billion, forty-four million, fifty-seven thousand, five hundred seventeen".