159406686 has 12 divisors (see below), whose sum is σ = 345381192. Its totient is φ = 53135556.

The previous prime is 159406661. The next prime is 159406697. The reversal of 159406686 is 686604951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4427946 + ... + 4427981.

It is an arithmetic number, because the mean of its divisors is an integer number (28781766).

Almost surely, 2^159406686 is an apocalyptic number.

159406686 is an abundant number, since it is smaller than the sum of its proper divisors (185974506).

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

159406686 is a wasteful number, since it uses less digits than its factorization.

159406686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855935 (or 8855932 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 159406686 is about 12625.6360631851. The cubic root of 159406686 is about 542.2116496608.

The spelling of 159406686 in words is "one hundred fifty-nine million, four hundred six thousand, six hundred eighty-six".