165620123366463 has 24 divisors (see below), whose sum is σ = 239445385740288. Its totient is φ = 110313608721552.

The previous prime is 165620123366431. The next prime is 165620123366507. The reversal of 165620123366463 is 364663321026561.

165620123366463 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 20 + 123 + 36 + 6 + 463 = 666.

It is not a de Polignac number, because 165620123366463 - 2⁵ = 165620123366431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165620123366363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59895106 + ... + 62599232.

It is an arithmetic number, because the mean of its divisors is an integer number (9976891072512).

Almost surely, 2^{165620123366463} is an apocalyptic number.

165620123366463 is a deficient number, since it is larger than the sum of its proper divisors (73825262373825).

165620123366463 is a wasteful number, since it uses less digits than its factorization.

165620123366463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710283 (or 2710280 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 54.

The spelling of 165620123366463 in words is "one hundred sixty-five trillion, six hundred twenty billion, one hundred twenty-three million, three hundred sixty-six thousand, four hundred sixty-three".