157668162232 has 128 divisors (see below), whose sum is σ = 357744038400. Its totient is φ = 63815558400.

The previous prime is 157668162173. The next prime is 157668162283. The reversal of 157668162232 is 232261866751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230846163 + ... + 230846845.

It is an arithmetic number, because the mean of its divisors is an integer number (2794875300).

Almost surely, 2^157668162232 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 157668162232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178872019200).

157668162232 is an abundant number, since it is smaller than the sum of its proper divisors (200075876168).

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

157668162232 is an equidigital number, since it uses as much as digits as its factorization.

157668162232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1312 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 157668162232 in words is "one hundred fifty-seven billion, six hundred sixty-eight million, one hundred sixty-two thousand, two hundred thirty-two".