716664632245 has 32 divisors (see below), whose sum is σ = 886686847200. Its totient is φ = 555663753216.

The previous prime is 716664632239. The next prime is 716664632263. The reversal of 716664632245 is 542236466617.

It can be written as a sum of positive squares in 16 ways, for example, as 122641440804 + 594023191441 = 350202^2 + 770729^2 .

It is a cyclic number.

It is not a de Polignac number, because 716664632245 - 2⁵ = 716664632213 is a prime.

It is a super-2 number, since 2×716664632245² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 716664632192 and 716664632201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56472861 + ... + 56485549.

It is an arithmetic number, because the mean of its divisors is an integer number (27708963975).

Almost surely, 2^716664632245 is an apocalyptic number.

It is an amenable number.

716664632245 is a deficient number, since it is larger than the sum of its proper divisors (170022214955).

716664632245 is a wasteful number, since it uses less digits than its factorization.

716664632245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897.

The product of its digits is 8709120, while the sum is 52.

The spelling of 716664632245 in words is "seven hundred sixteen billion, six hundred sixty-four million, six hundred thirty-two thousand, two hundred forty-five".