157177020373 has 4 divisors (see below), whose sum is σ = 158376845088. Its totient is φ = 155977195660.

The previous prime is 157177020361. The next prime is 157177020389. The reversal of 157177020373 is 373020771751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 373020771751 = 31 ⋅12032928121.

It is a cyclic number.

It is not a de Polignac number, because 157177020373 - 2⁹ = 157177019861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157177020673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599912161 + ... + 599912422.

It is an arithmetic number, because the mean of its divisors is an integer number (39594211272).

Almost surely, 2^157177020373 is an apocalyptic number.

It is an amenable number.

157177020373 is a deficient number, since it is larger than the sum of its proper divisors (1199824715).

157177020373 is a wasteful number, since it uses less digits than its factorization.

157177020373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199824714.

The product of its (nonzero) digits is 216090, while the sum is 43.

The spelling of 157177020373 in words is "one hundred fifty-seven billion, one hundred seventy-seven million, twenty thousand, three hundred seventy-three".