157620535169 has 2 divisors, whose sum is σ = 157620535170. Its totient is φ = 157620535168.

The previous prime is 157620535159. The next prime is 157620535199. The reversal of 157620535169 is 961535026751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110526327025 + 47094208144 = 332455^2 + 217012^2 .

It is a cyclic number.

It is not a de Polignac number, because 157620535169 - 2⁴ = 157620535153 is a prime.

It is a super-2 number, since 2×157620535169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157620535109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78810267584 + 78810267585.

It is an arithmetic number, because the mean of its divisors is an integer number (78810267585).

Almost surely, 2^157620535169 is an apocalyptic number.

It is an amenable number.

157620535169 is a deficient number, since it is larger than the sum of its proper divisors (1).

157620535169 is an equidigital number, since it uses as much as digits as its factorization.

157620535169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 157620535169 in words is "one hundred fifty-seven billion, six hundred twenty million, five hundred thirty-five thousand, one hundred sixty-nine".