16868706465 has 64 divisors (see below), whose sum is σ = 30195389952. Its totient is φ = 7987660800.

The previous prime is 16868706443. The next prime is 16868706479. The reversal of 16868706465 is 56460786861.

It is not a de Polignac number, because 16868706465 - 2⁶ = 16868706401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 552787 + ... + 582503.

It is an arithmetic number, because the mean of its divisors is an integer number (471802968).

Almost surely, 2^16868706465 is an apocalyptic number.

16868706465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16868706465 is a deficient number, since it is larger than the sum of its proper divisors (13326683487).

16868706465 is a wasteful number, since it uses less digits than its factorization.

16868706465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29850.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 16868706465 in words is "sixteen billion, eight hundred sixty-eight million, seven hundred six thousand, four hundred sixty-five".