157660227 has 24 divisors (see below), whose sum is σ = 241684560. Its totient is φ = 98695680.

The previous prime is 157660171. The next prime is 157660229. The reversal of 157660227 is 722066751.

157660227 is a `hidden beast` number, since 1 + 576 + 60 + 2 + 27 = 666.

It is not a de Polignac number, because 157660227 - 2⁷ = 157660099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157660191 and 157660200.

It is not an unprimeable number, because it can be changed into a prime (157660229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86152 + ... + 87962.

It is an arithmetic number, because the mean of its divisors is an integer number (10070190).

Almost surely, 2^157660227 is an apocalyptic number.

157660227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

157660227 is a deficient number, since it is larger than the sum of its proper divisors (84024333).

157660227 is a wasteful number, since it uses less digits than its factorization.

157660227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 157660227 is about 12556.2823717850. The cubic root of 157660227 is about 540.2242175876.

The spelling of 157660227 in words is "one hundred fifty-seven million, six hundred sixty thousand, two hundred twenty-seven".