157558498657 has 16 divisors (see below), whose sum is σ = 180828426240. Its totient is φ = 134480153808.

The previous prime is 157558498649. The next prime is 157558498679. The reversal of 157558498657 is 756894855751.

It is not a de Polignac number, because 157558498657 - 2³ = 157558498649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157558498687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555248 + ... + 1653454.

It is an arithmetic number, because the mean of its divisors is an integer number (11301776640).

Almost surely, 2^157558498657 is an apocalyptic number.

It is an amenable number.

157558498657 is a deficient number, since it is larger than the sum of its proper divisors (23269927583).

157558498657 is an equidigital number, since it uses as much as digits as its factorization.

157558498657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99180.

The product of its digits is 423360000, while the sum is 70.

The spelling of 157558498657 in words is "one hundred fifty-seven billion, five hundred fifty-eight million, four hundred ninety-eight thousand, six hundred fifty-seven".