164157699 has 16 divisors (see below), whose sum is σ = 225533952. Its totient is φ = 106151808.

The previous prime is 164157691. The next prime is 164157709. The reversal of 164157699 is 996751461.

It is a happy number.

It is not a de Polignac number, because 164157699 - 2³ = 164157691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164157691) 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, 10782 + ... + 21084.

It is an arithmetic number, because the mean of its divisors is an integer number (14095872).

Almost surely, 2^164157699 is an apocalyptic number.

164157699 is a deficient number, since it is larger than the sum of its proper divisors (61376253).

164157699 is a wasteful number, since it uses less digits than its factorization.

164157699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466.

The product of its digits is 408240, while the sum is 48.

The square root of 164157699 is about 12812.4041069582. The cubic root of 164157699 is about 547.5457579404.

It can be divided in two parts, 1641 and 57699, that added together give a triangular number (59340 = T₃₄₄).

The spelling of 164157699 in words is "one hundred sixty-four million, one hundred fifty-seven thousand, six hundred ninety-nine".