10206564516465 has 32 divisors (see below), whose sum is σ = 16561583533440. Its totient is φ = 5366826837504.

The previous prime is 10206564516433. The next prime is 10206564516479. The reversal of 10206564516465 is 56461546560201.

It is not a de Polignac number, because 10206564516465 - 2⁵ = 10206564516433 is a prime.

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, 10553134 + ... + 11479623.

It is an arithmetic number, because the mean of its divisors is an integer number (517549485420).

Almost surely, 2^{10206564516465} is an apocalyptic number.

10206564516465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10206564516465 is a deficient number, since it is larger than the sum of its proper divisors (6355019016975).

10206564516465 is a wasteful number, since it uses less digits than its factorization.

10206564516465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22033201.

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 10206564516465 in words is "ten trillion, two hundred six billion, five hundred sixty-four million, five hundred sixteen thousand, four hundred sixty-five".