16764342765 has 48 divisors (see below), whose sum is σ = 28519102080. Its totient is φ = 8399059200.

The previous prime is 16764342743. The next prime is 16764342779. The reversal of 16764342765 is 56724346761.

It is not a de Polignac number, because 16764342765 - 2²⁰ = 16763294189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 581440 + ... + 609590.

It is an arithmetic number, because the mean of its divisors is an integer number (594147960).

Almost surely, 2^16764342765 is an apocalyptic number.

16764342765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16764342765 is a deficient number, since it is larger than the sum of its proper divisors (11754759315).

16764342765 is a wasteful number, since it uses less digits than its factorization.

16764342765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28262 (or 28225 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The spelling of 16764342765 in words is "sixteen billion, seven hundred sixty-four million, three hundred forty-two thousand, seven hundred sixty-five".