165651562301361 has 8 divisors (see below), whose sum is σ = 232493420773920. Its totient is φ = 104622039348192.

The previous prime is 165651562301321. The next prime is 165651562301389. The reversal of 165651562301361 is 163103265156561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165651562301361 - 2⁹ = 165651562300849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165651562301311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453083879780 + ... + 1453083879893.

It is an arithmetic number, because the mean of its divisors is an integer number (29061677596740).

Almost surely, 2^{165651562301361} is an apocalyptic number.

It is an amenable number.

165651562301361 is a deficient number, since it is larger than the sum of its proper divisors (66841858472559).

165651562301361 is a wasteful number, since it uses less digits than its factorization.

165651562301361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906167759695.

The product of its (nonzero) digits is 2916000, while the sum is 51.

The spelling of 165651562301361 in words is "one hundred sixty-five trillion, six hundred fifty-one billion, five hundred sixty-two million, three hundred one thousand, three hundred sixty-one".