157388334951761 has 2 divisors, whose sum is σ = 157388334951762. Its totient is φ = 157388334951760.

The previous prime is 157388334951713. The next prime is 157388334951773. The reversal of 157388334951761 is 167159433883751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155050934283025 + 2337400668736 = 12451945^2 + 1528856^2 .

It is a cyclic number.

It is not a de Polignac number, because 157388334951761 - 2¹⁸ = 157388334689617 is a prime.

It is a super-2 number, since 2×157388334951761² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157388334951161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78694167475880 + 78694167475881.

It is an arithmetic number, because the mean of its divisors is an integer number (78694167475881).

Almost surely, 2^{157388334951761} is an apocalyptic number.

It is an amenable number.

157388334951761 is a deficient number, since it is larger than the sum of its proper divisors (1).

157388334951761 is an equidigital number, since it uses as much as digits as its factorization.

157388334951761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 457228800, while the sum is 71.

The spelling of 157388334951761 in words is "one hundred fifty-seven trillion, three hundred eighty-eight billion, three hundred thirty-four million, nine hundred fifty-one thousand, seven hundred sixty-one".