165120426225466 has 4 divisors (see below), whose sum is σ = 247680639338202. Its totient is φ = 82560213112732.

The previous prime is 165120426225341. The next prime is 165120426225479. The reversal of 165120426225466 is 664522624021561.

165120426225466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121928966201025 + 43191460024441 = 11042145^2 + 6572021^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41280106556365 + ... + 41280106556368.

Almost surely, 2^{165120426225466} is an apocalyptic number.

165120426225466 is a deficient number, since it is larger than the sum of its proper divisors (82560213112736).

165120426225466 is an equidigital number, since it uses as much as digits as its factorization.

165120426225466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82560213112735.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 165120426225466 in words is "one hundred sixty-five trillion, one hundred twenty billion, four hundred twenty-six million, two hundred twenty-five thousand, four hundred sixty-six".