157665327 has 16 divisors (see below), whose sum is σ = 225640800. Its totient is φ = 97569792.

The previous prime is 157665323. The next prime is 157665359. The reversal of 157665327 is 723566751.

157665327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157665327 - 2² = 157665323 is a prime.

It is a super-4 number, since 4×157665327⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157665323) 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, 17452 + ... + 24897.

It is an arithmetic number, because the mean of its divisors is an integer number (14102550).

Almost surely, 2^157665327 is an apocalyptic number.

157665327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

157665327 is a deficient number, since it is larger than the sum of its proper divisors (67975473).

157665327 is a wasteful number, since it uses less digits than its factorization.

157665327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42442.

The product of its digits is 264600, while the sum is 42.

The square root of 157665327 is about 12556.4854557316. The cubic root of 157665327 is about 540.2300425904.

The spelling of 157665327 in words is "one hundred fifty-seven million, six hundred sixty-five thousand, three hundred twenty-seven".