157435955523 has 48 divisors (see below), whose sum is σ = 283582480896. Its totient is φ = 81767185920.

The previous prime is 157435955477. The next prime is 157435955543. The reversal of 157435955523 is 325559534751.

157435955523 is a `hidden beast` number, since 1 + 5 + 7 + 43 + 595 + 5 + 5 + 2 + 3 = 666.

It is a Cunningham number, because it is equal to 396782²-1.

It is not a de Polignac number, because 157435955523 - 2⁸ = 157435955267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157435955523.

It is not an unprimeable number, because it can be changed into a prime (157435955543) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3548986 + ... + 3593072.

It is an arithmetic number, because the mean of its divisors is an integer number (5907968352).

Almost surely, 2^157435955523 is an apocalyptic number.

157435955523 is a deficient number, since it is larger than the sum of its proper divisors (126146525373).

157435955523 is a wasteful number, since it uses less digits than its factorization.

157435955523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49264 (or 49261 counting only the distinct ones).

The product of its digits is 14175000, while the sum is 54.

The spelling of 157435955523 in words is "one hundred fifty-seven billion, four hundred thirty-five million, nine hundred fifty-five thousand, five hundred twenty-three".