667164157 has 16 divisors (see below), whose sum is σ = 774043200. Its totient is φ = 568650240.

The previous prime is 667164143. The next prime is 667164163. The reversal of 667164157 is 751461766.

It is not a de Polignac number, because 667164157 - 2¹¹ = 667162109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667164187) 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, 3819 + ... + 36727.

It is an arithmetic number, because the mean of its divisors is an integer number (48377700).

Almost surely, 2^667164157 is an apocalyptic number.

It is an amenable number.

667164157 is a deficient number, since it is larger than the sum of its proper divisors (106879043).

667164157 is a wasteful number, since it uses less digits than its factorization.

667164157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33036.

The product of its digits is 211680, while the sum is 43.

The square root of 667164157 is about 25829.5210369840. The cubic root of 667164157 is about 873.7977096249.

The spelling of 667164157 in words is "six hundred sixty-seven million, one hundred sixty-four thousand, one hundred fifty-seven".