157660667 has 2 divisors, whose sum is σ = 157660668. Its totient is φ = 157660666.

The previous prime is 157660639. The next prime is 157660673. The reversal of 157660667 is 766066751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157660667 - 2¹² = 157656571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157660627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78830333 + 78830334.

It is an arithmetic number, because the mean of its divisors is an integer number (78830334).

Almost surely, 2^157660667 is an apocalyptic number.

157660667 is a deficient number, since it is larger than the sum of its proper divisors (1).

157660667 is an equidigital number, since it uses as much as digits as its factorization.

157660667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 157660667 is about 12556.2998928825. The cubic root of 157660667 is about 540.2247201418.

The spelling of 157660667 in words is "one hundred fifty-seven million, six hundred sixty thousand, six hundred sixty-seven".