157557681288 has 192 divisors, whose sum is σ = 511665822720. Its totient is φ = 42849907200.

The previous prime is 157557681271. The next prime is 157557681293. The reversal of 157557681288 is 882186755751.

157557681288 is a `hidden beast` number, since 1 + 5 + 7 + 557 + 68 + 12 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 870406 + ... + 1035722.

It is an arithmetic number, because the mean of its divisors is an integer number (2664926160).

Almost surely, 2^157557681288 is an apocalyptic number.

157557681288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157557681288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255832911360).

157557681288 is an abundant number, since it is smaller than the sum of its proper divisors (354108141432).

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

157557681288 is a wasteful number, since it uses less digits than its factorization.

157557681288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165428 (or 165421 counting only the distinct ones).

The product of its digits is 37632000, while the sum is 63.

The spelling of 157557681288 in words is "one hundred fifty-seven billion, five hundred fifty-seven million, six hundred eighty-one thousand, two hundred eighty-eight".