157399544105 has 4 divisors (see below), whose sum is σ = 188879452932. Its totient is φ = 125919635280.

The previous prime is 157399544101. The next prime is 157399544129. The reversal of 157399544105 is 501445993751.

It is a happy number.

157399544105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23332257001 + 134067287104 = 152749^2 + 366152^2 .

It is not a de Polignac number, because 157399544105 - 2² = 157399544101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157399544101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15739954406 + ... + 15739954415.

It is an arithmetic number, because the mean of its divisors is an integer number (47219863233).

Almost surely, 2^157399544105 is an apocalyptic number.

It is an amenable number.

157399544105 is a deficient number, since it is larger than the sum of its proper divisors (31479908827).

157399544105 is an equidigital number, since it uses as much as digits as its factorization.

157399544105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31479908826.

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 157399544105 in words is "one hundred fifty-seven billion, three hundred ninety-nine million, five hundred forty-four thousand, one hundred five".