63040661165 has 16 divisors (see below), whose sum is σ = 82199032320. Its totient is φ = 46236951360.

The previous prime is 63040661093. The next prime is 63040661171. The reversal of 63040661165 is 56116604036.

63040661165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63040661165 - 2¹⁸ = 63040399021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10700054 + ... + 10705943.

It is an arithmetic number, because the mean of its divisors is an integer number (5137439520).

Almost surely, 2^63040661165 is an apocalyptic number.

It is an amenable number.

63040661165 is a deficient number, since it is larger than the sum of its proper divisors (19158371155).

63040661165 is a wasteful number, since it uses less digits than its factorization.

63040661165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21406052.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 63040661165 in words is "sixty-three billion, forty million, six hundred sixty-one thousand, one hundred sixty-five".