158857445730 has 32 divisors (see below), whose sum is σ = 383540863104. Its totient is φ = 42108319616.

The previous prime is 158857445717. The next prime is 158857445737. The reversal of 158857445730 is 37544758851.

It is not an unprimeable number, because it can be changed into a prime (158857445737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15849027 + ... + 15859046.

It is an arithmetic number, because the mean of its divisors is an integer number (11985651972).

Almost surely, 2^158857445730 is an apocalyptic number.

158857445730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158857445730 is an abundant number, since it is smaller than the sum of its proper divisors (224683417374).

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

158857445730 is a wasteful number, since it uses less digits than its factorization.

158857445730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31708250.

The product of its (nonzero) digits is 18816000, while the sum is 57.

The spelling of 158857445730 in words is "one hundred fifty-eight billion, eight hundred fifty-seven million, four hundred forty-five thousand, seven hundred thirty".