16485742865265 has 16 divisors (see below), whose sum is σ = 26938405363968. Its totient is φ = 8605323934976.

The previous prime is 16485742865239. The next prime is 16485742865279. The reversal of 16485742865265 is 56256824758461.

It is a cyclic number.

It is not a de Polignac number, because 16485742865265 - 2⁹ = 16485742864753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16485742865265.

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, 11692015512 + ... + 11692016921.

It is an arithmetic number, because the mean of its divisors is an integer number (1683650335248).

Almost surely, 2^{16485742865265} is an apocalyptic number.

16485742865265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16485742865265 is a deficient number, since it is larger than the sum of its proper divisors (10452662498703).

16485742865265 is a wasteful number, since it uses less digits than its factorization.

16485742865265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23384032488.

The product of its digits is 774144000, while the sum is 69.

The spelling of 16485742865265 in words is "sixteen trillion, four hundred eighty-five billion, seven hundred forty-two million, eight hundred sixty-five thousand, two hundred sixty-five".