157916669 has 4 divisors (see below), whose sum is σ = 157946496. Its totient is φ = 157886844.

The previous prime is 157916651. The next prime is 157916729. The reversal of 157916669 is 966619751.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157916669 is a prime.

It is a super-2 number, since 2×157916669² = 49875348696111122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157916609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4589 + ... + 18354.

It is an arithmetic number, because the mean of its divisors is an integer number (39486624).

Almost surely, 2^157916669 is an apocalyptic number.

It is an amenable number.

157916669 is a deficient number, since it is larger than the sum of its proper divisors (29827).

157916669 is an equidigital number, since it uses as much as digits as its factorization.

157916669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29826.

The product of its digits is 612360, while the sum is 50.

The square root of 157916669 is about 12566.4899236024. The cubic root of 157916669 is about 540.5169592158.

The spelling of 157916669 in words is "one hundred fifty-seven million, nine hundred sixteen thousand, six hundred sixty-nine".