157430115640 has 256 divisors, whose sum is σ = 439262208000. Its totient is φ = 49576665600.

The previous prime is 157430115631. The next prime is 157430115649. The reversal of 157430115640 is 46511034751.

It is an interprime number because it is at equal distance from previous prime (157430115631) and next prime (157430115649).

It is a self number, because there is not a number n which added to its sum of digits gives 157430115640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157430115649) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31795165 + ... + 31800115.

It is an arithmetic number, because the mean of its divisors is an integer number (1715868000).

Almost surely, 2^157430115640 is an apocalyptic number.

157430115640 is a gapful number since it is divisible by the number (10) 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 157430115640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219631104000).

157430115640 is an abundant number, since it is smaller than the sum of its proper divisors (281832092360).

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

157430115640 is a wasteful number, since it uses less digits than its factorization.

157430115640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170 (or 5166 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 157430115640 in words is "one hundred fifty-seven billion, four hundred thirty million, one hundred fifteen thousand, six hundred forty".