791664045 has 16 divisors (see below), whose sum is σ = 1279723200. Its totient is φ = 417867264.

The previous prime is 791664031. The next prime is 791664053. The reversal of 791664045 is 540466197.

It is not a de Polignac number, because 791664045 - 2⁶ = 791663981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 791663988 and 791664006.

It is a congruent number.

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, 270595 + ... + 273504.

It is an arithmetic number, because the mean of its divisors is an integer number (79982700).

Almost surely, 2^791664045 is an apocalyptic number.

It is an amenable number.

791664045 is a deficient number, since it is larger than the sum of its proper divisors (488059155).

791664045 is a wasteful number, since it uses less digits than its factorization.

791664045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544204.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 791664045 is about 28136.5251052791. The cubic root of 791664045 is about 925.0821626555.

The spelling of 791664045 in words is "seven hundred ninety-one million, six hundred sixty-four thousand, forty-five".