670163157 has 6 divisors (see below), whose sum is σ = 968013462. Its totient is φ = 446775432.

The previous prime is 670163089. The next prime is 670163161. The reversal of 670163157 is 751361076.

It can be written as a sum of positive squares in only one way, i.e., 575568081 + 94595076 = 23991^2 + 9726^2 .

It is not a de Polignac number, because 670163157 - 2⁸ = 670162901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670163057) 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 5 ways as a sum of consecutive naturals, for example, 37231278 + ... + 37231295.

It is an arithmetic number, because the mean of its divisors is an integer number (161335577).

Almost surely, 2^670163157 is an apocalyptic number.

It is an amenable number.

670163157 is a deficient number, since it is larger than the sum of its proper divisors (297850305).

670163157 is a wasteful number, since it uses less digits than its factorization.

670163157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74462579 (or 74462576 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 670163157 is about 25887.5096716544. The cubic root of 670163157 is about 875.1050353366.

The spelling of 670163157 in words is "six hundred seventy million, one hundred sixty-three thousand, one hundred fifty-seven".