157144728701 has 16 divisors (see below), whose sum is σ = 163686322800. Its totient is φ = 150751180800.

The previous prime is 157144728691. The next prime is 157144728737. The reversal of 157144728701 is 107827441751.

It can be written as a sum of positive squares in 8 ways, for example, as 36406548025 + 120738180676 = 190805^2 + 347474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157144728701 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 (157144718701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541505 + ... + 779433.

It is an arithmetic number, because the mean of its divisors is an integer number (10230395175).

Almost surely, 2^157144728701 is an apocalyptic number.

It is an amenable number.

157144728701 is a deficient number, since it is larger than the sum of its proper divisors (6541594099).

157144728701 is a wasteful number, since it uses less digits than its factorization.

157144728701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238240.

The product of its (nonzero) digits is 439040, while the sum is 47.

The spelling of 157144728701 in words is "one hundred fifty-seven billion, one hundred forty-four million, seven hundred twenty-eight thousand, seven hundred one".