157664851 has 16 divisors (see below), whose sum is σ = 173543040. Its totient is φ = 142571520.

The previous prime is 157664849. The next prime is 157664863. The reversal of 157664851 is 158466751.

157664851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157664851 - 2¹ = 157664849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157664798 and 157664807.

It is not an unprimeable number, because it can be changed into a prime (157664651) 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, 118150 + ... + 119476.

It is an arithmetic number, because the mean of its divisors is an integer number (10846440).

Almost surely, 2^157664851 is an apocalyptic number.

157664851 is a deficient number, since it is larger than the sum of its proper divisors (15878189).

157664851 is a wasteful number, since it uses less digits than its factorization.

157664851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614.

The product of its digits is 201600, while the sum is 43.

The square root of 157664851 is about 12556.4665013689. The cubic root of 157664851 is about 540.2294989288.

The spelling of 157664851 in words is "one hundred fifty-seven million, six hundred sixty-four thousand, eight hundred fifty-one".