157171015506 has 16 divisors (see below), whose sum is σ = 314377062048. Its totient is φ = 52384500000.

The previous prime is 157171015487. The next prime is 157171015541. The reversal of 157171015506 is 605510171751.

157171015506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1401120 + ... + 1509131.

It is an arithmetic number, because the mean of its divisors is an integer number (19648566378).

Almost surely, 2^157171015506 is an apocalyptic number.

157171015506 is an abundant number, since it is smaller than the sum of its proper divisors (157206046542).

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

157171015506 is a wasteful number, since it uses less digits than its factorization.

157171015506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919257.

The product of its (nonzero) digits is 36750, while the sum is 39.

The spelling of 157171015506 in words is "one hundred fifty-seven billion, one hundred seventy-one million, fifteen thousand, five hundred six".