157597320154823 has 4 divisors (see below), whose sum is σ = 157597889730600. Its totient is φ = 157596750579048.

The previous prime is 157597320154801. The next prime is 157597320154847. The reversal of 157597320154823 is 328451023795751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157597320154823 - 2²⁰ = 157597319106247 is a prime.

It is a super-2 number, since 2×157597320154823² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157597320184823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284372648 + ... + 284926301.

It is an arithmetic number, because the mean of its divisors is an integer number (39399472432650).

Almost surely, 2^{157597320154823} is an apocalyptic number.

157597320154823 is a deficient number, since it is larger than the sum of its proper divisors (569575777).

157597320154823 is an equidigital number, since it uses as much as digits as its factorization.

157597320154823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569575776.

The product of its (nonzero) digits is 63504000, while the sum is 62.

The spelling of 157597320154823 in words is "one hundred fifty-seven trillion, five hundred ninety-seven billion, three hundred twenty million, one hundred fifty-four thousand, eight hundred twenty-three".