10365661616665 has 32 divisors (see below), whose sum is σ = 12996795580416. Its totient is φ = 7921488104640.

The previous prime is 10365661616641. The next prime is 10365661616747. The reversal of 10365661616665 is 56661616656301.

It is not a de Polignac number, because 10365661616665 - 2⁹ = 10365661616153 is a prime.

It is a super-2 number, since 2×10365661616665² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415162012 + ... + 415186978.

It is an arithmetic number, because the mean of its divisors is an integer number (406149861888).

Almost surely, 2^{10365661616665} is an apocalyptic number.

It is an amenable number.

10365661616665 is a deficient number, since it is larger than the sum of its proper divisors (2631133963751).

10365661616665 is a wasteful number, since it uses less digits than its factorization.

10365661616665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29629.

The product of its (nonzero) digits is 20995200, while the sum is 58.

The spelling of 10365661616665 in words is "ten trillion, three hundred sixty-five billion, six hundred sixty-one million, six hundred sixteen thousand, six hundred sixty-five".