157649806 has 16 divisors (see below), whose sum is σ = 251192016. Its totient is φ = 73949056.

The previous prime is 157649801. The next prime is 157649809. The reversal of 157649806 is 608946751.

157649806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157649806² = 49706922663675272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157649801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 18091.

It is an arithmetic number, because the mean of its divisors is an integer number (15699501).

Almost surely, 2^157649806 is an apocalyptic number.

157649806 is a deficient number, since it is larger than the sum of its proper divisors (93542210).

157649806 is a wasteful number, since it uses less digits than its factorization.

157649806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14963.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 157649806 is about 12555.8673933743. The cubic root of 157649806 is about 540.2123147746.

The spelling of 157649806 in words is "one hundred fifty-seven million, six hundred forty-nine thousand, eight hundred six".