157039443420 has 24 divisors (see below), whose sum is σ = 439710441744. Its totient is φ = 41877184896.

The previous prime is 157039443371. The next prime is 157039443433. The reversal of 157039443420 is 24344930751.

It is a happy number.

157039443420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157039443420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308661969 + ... + 1308662088.

It is an arithmetic number, because the mean of its divisors is an integer number (18321268406).

Almost surely, 2^157039443420 is an apocalyptic number.

157039443420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157039443420 is an abundant number, since it is smaller than the sum of its proper divisors (282670998324).

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

157039443420 is a wasteful number, since it uses less digits than its factorization.

157039443420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617324069 (or 2617324067 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 157039443420 in words is "one hundred fifty-seven billion, thirty-nine million, four hundred forty-three thousand, four hundred twenty".