165246340438918 has 16 divisors (see below), whose sum is σ = 251936750016000. Its totient is φ = 81267464678400.

The previous prime is 165246340438871. The next prime is 165246340438973. The reversal of 165246340438918 is 819834043642561.

It is a self number, because there is not a number n which added to its sum of digits gives 165246340438918.

It is a congruent 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, 2090043 + ... + 18299206.

It is an arithmetic number, because the mean of its divisors is an integer number (15746046876000).

Almost surely, 2^{165246340438918} is an apocalyptic number.

165246340438918 is a deficient number, since it is larger than the sum of its proper divisors (86690409577082).

165246340438918 is a wasteful number, since it uses less digits than its factorization.

165246340438918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455743.

The product of its (nonzero) digits is 119439360, while the sum is 64.

The spelling of 165246340438918 in words is "one hundred sixty-five trillion, two hundred forty-six billion, three hundred forty million, four hundred thirty-eight thousand, nine hundred eighteen".