716640265 has 8 divisors (see below), whose sum is σ = 938147328. Its totient is φ = 521192880.

The previous prime is 716640209. The next prime is 716640289. The reversal of 716640265 is 562046617.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 716640265 - 2¹⁵ = 716607497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6514857 + ... + 6514966.

It is an arithmetic number, because the mean of its divisors is an integer number (117268416).

Almost surely, 2^716640265 is an apocalyptic number.

It is an amenable number.

716640265 is a deficient number, since it is larger than the sum of its proper divisors (221507063).

716640265 is a wasteful number, since it uses less digits than its factorization.

716640265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13029839.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 716640265 is about 26770.1375603488. The cubic root of 716640265 is about 894.8846703863.

The spelling of 716640265 in words is "seven hundred sixteen million, six hundred forty thousand, two hundred sixty-five".