157857230015 has 8 divisors (see below), whose sum is σ = 191826507840. Its totient is φ = 124687229472.

The previous prime is 157857229991. The next prime is 157857230033. The reversal of 157857230015 is 510032758751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157857230015 - 2⁸ = 157857229759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199818884 + ... + 199819673.

It is an arithmetic number, because the mean of its divisors is an integer number (23978313480).

Almost surely, 2^157857230015 is an apocalyptic number.

157857230015 is a deficient number, since it is larger than the sum of its proper divisors (33969277825).

157857230015 is an equidigital number, since it uses as much as digits as its factorization.

157857230015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399638641.

The product of its (nonzero) digits is 294000, while the sum is 44.

Adding to 157857230015 its reverse (510032758751), we get a palindrome (667889988766).

The spelling of 157857230015 in words is "one hundred fifty-seven billion, eight hundred fifty-seven million, two hundred thirty thousand, fifteen".