159900690 has 16 divisors (see below), whose sum is σ = 383761728. Its totient is φ = 42640176.

The previous prime is 159900647. The next prime is 159900701. The reversal of 159900690 is 96009951.

It is a super-2 number, since 2×159900690² = 51136461324952200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664982 + ... + 2665041.

It is an arithmetic number, because the mean of its divisors is an integer number (23985108).

Almost surely, 2^159900690 is an apocalyptic number.

159900690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159900690 is an abundant number, since it is smaller than the sum of its proper divisors (223861038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159900690 is a wasteful number, since it uses less digits than its factorization.

159900690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330033.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 159900690 is about 12645.1844589156. The cubic root of 159900690 is about 542.7711797334.

The spelling of 159900690 in words is "one hundred fifty-nine million, nine hundred thousand, six hundred ninety".