157920554199 has 16 divisors (see below), whose sum is σ = 216630900992. Its totient is φ = 102288339648.

The previous prime is 157920554191. The next prime is 157920554201. The reversal of 157920554199 is 991455029751.

157920554199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157920554199 - 2³ = 157920554191 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157920554191) 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 15 ways as a sum of consecutive naturals, for example, 5366659 + ... + 5396004.

It is an arithmetic number, because the mean of its divisors is an integer number (13539431312).

Almost surely, 2^157920554199 is an apocalyptic number.

157920554199 is a deficient number, since it is larger than the sum of its proper divisors (58710346793).

157920554199 is a wasteful number, since it uses less digits than its factorization.

157920554199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10762806.

The product of its (nonzero) digits is 5103000, while the sum is 57.

The spelling of 157920554199 in words is "one hundred fifty-seven billion, nine hundred twenty million, five hundred fifty-four thousand, one hundred ninety-nine".