157660023 has 8 divisors (see below), whose sum is σ = 222578928. Its totient is φ = 98923904.

The previous prime is 157660007. The next prime is 157660073. The reversal of 157660023 is 320066751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157660023 - 2⁴ = 157660007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157660003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545636 + ... + 1545737.

It is an arithmetic number, because the mean of its divisors is an integer number (27822366).

Almost surely, 2^157660023 is an apocalyptic number.

157660023 is a deficient number, since it is larger than the sum of its proper divisors (64918905).

157660023 is a wasteful number, since it uses less digits than its factorization.

157660023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091393.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 157660023 is about 12556.2742483589. The cubic root of 157660023 is about 540.2239845849.

The spelling of 157660023 in words is "one hundred fifty-seven million, six hundred sixty thousand, twenty-three".