157206745613 has 2 divisors, whose sum is σ = 157206745614. Its totient is φ = 157206745612.

The previous prime is 157206745601. The next prime is 157206745673. The reversal of 157206745613 is 316547602751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149195242564 + 8011503049 = 386258^2 + 89507^2 .

It is a cyclic number.

It is not a de Polignac number, because 157206745613 - 2¹⁰ = 157206744589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157206745673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78603372806 + 78603372807.

It is an arithmetic number, because the mean of its divisors is an integer number (78603372807).

Almost surely, 2^157206745613 is an apocalyptic number.

It is an amenable number.

157206745613 is a deficient number, since it is larger than the sum of its proper divisors (1).

157206745613 is an equidigital number, since it uses as much as digits as its factorization.

157206745613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 157206745613 in words is "one hundred fifty-seven billion, two hundred six million, seven hundred forty-five thousand, six hundred thirteen".