157247801676 has 144 divisors (see below), whose sum is σ = 475253775360. Its totient is φ = 42899408640.

The previous prime is 157247801591. The next prime is 157247801731. The reversal of 157247801676 is 676108742751.

157247801676 is a `hidden beast` number, since 1 + 5 + 7 + 2 + 478 + 0 + 167 + 6 = 666.

It is a super-2 number, since 2×157247801676² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 323695 + ... + 647513.

It is an arithmetic number, because the mean of its divisors is an integer number (3300373440).

Almost surely, 2^157247801676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157247801676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237626887680).

157247801676 is an abundant number, since it is smaller than the sum of its proper divisors (318005973684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157247801676 is a wasteful number, since it uses less digits than its factorization.

157247801676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323924 (or 323919 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 157247801676 in words is "one hundred fifty-seven billion, two hundred forty-seven million, eight hundred one thousand, six hundred seventy-six".