159640551658 has 48 divisors (see below), whose sum is σ = 283390885440. Its totient is φ = 67230910656.

The previous prime is 159640551647. The next prime is 159640551709. The reversal of 159640551658 is 856155046951.

It is a junction number, because it is equal to n+sod(n) for n = 159640551599 and 159640551608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22239766 + ... + 22246942.

It is an arithmetic number, because the mean of its divisors is an integer number (5903976780).

Almost surely, 2^159640551658 is an apocalyptic number.

159640551658 is a deficient number, since it is larger than the sum of its proper divisors (123750333782).

159640551658 is a wasteful number, since it uses less digits than its factorization.

159640551658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099 (or 11092 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 55.

The spelling of 159640551658 in words is "one hundred fifty-nine billion, six hundred forty million, five hundred fifty-one thousand, six hundred fifty-eight".