157144667623 has 16 divisors (see below), whose sum is σ = 162226786176. Its totient is φ = 152107956000.

The previous prime is 157144667599. The next prime is 157144667627. The reversal of 157144667623 is 326766441751.

It is a cyclic number.

It is not a de Polignac number, because 157144667623 - 2⁵ = 157144667591 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 (157144667627) 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, 8190840 + ... + 8210002.

It is an arithmetic number, because the mean of its divisors is an integer number (10139174136).

Almost surely, 2^157144667623 is an apocalyptic number.

157144667623 is a deficient number, since it is larger than the sum of its proper divisors (5082118553).

157144667623 is a wasteful number, since it uses less digits than its factorization.

157144667623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334.

The product of its digits is 5080320, while the sum is 52.

The spelling of 157144667623 in words is "one hundred fifty-seven billion, one hundred forty-four million, six hundred sixty-seven thousand, six hundred twenty-three".