157211863623 has 12 divisors (see below), whose sum is σ = 227114030208. Its totient is φ = 104793958080.

The previous prime is 157211863607. The next prime is 157211863631. The reversal of 157211863623 is 326368112751.

It is a happy number.

157211863623 is a `hidden beast` number, since 1 + 5 + 7 + 2 + 1 + 1 + 8 + 636 + 2 + 3 = 666.

It is not a de Polignac number, because 157211863623 - 2⁴ = 157211863607 is a prime.

It is a super-2 number, since 2×157211863623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157211861623) 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, 1090983 + ... + 1226648.

It is an arithmetic number, because the mean of its divisors is an integer number (18926169184).

Almost surely, 2^157211863623 is an apocalyptic number.

157211863623 is a deficient number, since it is larger than the sum of its proper divisors (69902166585).

157211863623 is a wasteful number, since it uses less digits than its factorization.

157211863623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325174 (or 2325171 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 157211863623 in words is "one hundred fifty-seven billion, two hundred eleven million, eight hundred sixty-three thousand, six hundred twenty-three".