157440012023 has 16 divisors (see below), whose sum is σ = 181635498240. Its totient is φ = 133674929856.

The previous prime is 157440012019. The next prime is 157440012031. The reversal of 157440012023 is 320210044751.

It is a cyclic number.

It is not a de Polignac number, because 157440012023 - 2² = 157440012019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157440012053) 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, 248411 + ... + 613667.

It is an arithmetic number, because the mean of its divisors is an integer number (11352218640).

Almost surely, 2^157440012023 is an apocalyptic number.

157440012023 is a deficient number, since it is larger than the sum of its proper divisors (24195486217).

157440012023 is a wasteful number, since it uses less digits than its factorization.

157440012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365846.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 157440012023 its reverse (320210044751), we get a palindrome (477650056774).

The spelling of 157440012023 in words is "one hundred fifty-seven billion, four hundred forty million, twelve thousand, twenty-three".