157999208192 has 72 divisors (see below), whose sum is σ = 361085076576. Its totient is φ = 67591950336.

The previous prime is 157999208177. The next prime is 157999208197. The reversal of 157999208192 is 291802999751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157999208197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918998 + ... + 1077290.

It is an arithmetic number, because the mean of its divisors is an integer number (5015070508).

Almost surely, 2^157999208192 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 157999208192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180542538288).

157999208192 is an abundant number, since it is smaller than the sum of its proper divisors (203085868384).

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

157999208192 is an equidigital number, since it uses as much as digits as its factorization.

157999208192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158873 (or 158859 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 62.

The spelling of 157999208192 in words is "one hundred fifty-seven billion, nine hundred ninety-nine million, two hundred eight thousand, one hundred ninety-two".