157572454456 has 8 divisors (see below), whose sum is σ = 295448352120. Its totient is φ = 78786227224.

The previous prime is 157572454439. The next prime is 157572454489. The reversal of 157572454456 is 654454275751.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 157572454397 and 157572454406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9848278396 + ... + 9848278411.

It is an arithmetic number, because the mean of its divisors is an integer number (36931044015).

Almost surely, 2^157572454456 is an apocalyptic number.

It is an amenable number.

157572454456 is a deficient number, since it is larger than the sum of its proper divisors (137875897664).

157572454456 is a wasteful number, since it uses less digits than its factorization.

157572454456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19696556813 (or 19696556809 counting only the distinct ones).

The product of its digits is 23520000, while the sum is 55.

The spelling of 157572454456 in words is "one hundred fifty-seven billion, five hundred seventy-two million, four hundred fifty-four thousand, four hundred fifty-six".