157943657223 has 12 divisors (see below), whose sum is σ = 248880914568. Its totient is φ = 95723428560.

The previous prime is 157943657219. The next prime is 157943657233. The reversal of 157943657223 is 322756349751.

157943657223 is a `hidden beast` number, since 1 + 5 + 7 + 9 + 43 + 6 + 572 + 23 = 666.

It is not a de Polignac number, because 157943657223 - 2² = 157943657219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157943657223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157943657233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797695140 + ... + 797695337.

It is an arithmetic number, because the mean of its divisors is an integer number (20740076214).

Almost surely, 2^157943657223 is an apocalyptic number.

157943657223 is a deficient number, since it is larger than the sum of its proper divisors (90937257345).

157943657223 is a wasteful number, since it uses less digits than its factorization.

157943657223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595390494 (or 1595390491 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 54.

The spelling of 157943657223 in words is "one hundred fifty-seven billion, nine hundred forty-three million, six hundred fifty-seven thousand, two hundred twenty-three".