157540087620 has 96 divisors (see below), whose sum is σ = 491988752640. Its totient is φ = 41850915840.

The previous prime is 157540087619. The next prime is 157540087633. The reversal of 157540087620 is 26780045751.

157540087620 is a `hidden beast` number, since 1 + 5 + 7 + 540 + 0 + 87 + 6 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 412621 + ... + 696660.

It is an arithmetic number, because the mean of its divisors is an integer number (5124882840).

Almost surely, 2^157540087620 is an apocalyptic number.

157540087620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157540087620 is an abundant number, since it is smaller than the sum of its proper divisors (334448665020).

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

157540087620 is a wasteful number, since it uses less digits than its factorization.

157540087620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109562 (or 1109554 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 157540087620 in words is "one hundred fifty-seven billion, five hundred forty million, eighty-seven thousand, six hundred twenty".