165604610559796 has 48 divisors (see below), whose sum is σ = 307072242751680. Its totient is φ = 77876576847360.

The previous prime is 165604610559757. The next prime is 165604610559797. The reversal of 165604610559796 is 697955016406561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165604610559797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714593590 + ... + 714825298.

It is an arithmetic number, because the mean of its divisors is an integer number (6397338390660).

Almost surely, 2^{165604610559796} is an apocalyptic number.

It is an amenable number.

165604610559796 is a deficient number, since it is larger than the sum of its proper divisors (141467632191884).

165604610559796 is a wasteful number, since it uses less digits than its factorization.

165604610559796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239104 (or 239102 counting only the distinct ones).

The product of its (nonzero) digits is 367416000, while the sum is 70.

The spelling of 165604610559796 in words is "one hundred sixty-five trillion, six hundred four billion, six hundred ten million, five hundred fifty-nine thousand, seven hundred ninety-six".