716545474465 has 4 divisors (see below), whose sum is σ = 859854569364. Its totient is φ = 573236379568.

The previous prime is 716545474453. The next prime is 716545474553. The reversal of 716545474465 is 564474545617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564474545617 = 16007 ⋅35264231.

It can be written as a sum of positive squares in 2 ways, for example, as 438461162896 + 278084311569 = 662164^2 + 527337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716545474465 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71654547442 + ... + 71654547451.

It is an arithmetic number, because the mean of its divisors is an integer number (214963642341).

Almost surely, 2^716545474465 is an apocalyptic number.

It is an amenable number.

716545474465 is a deficient number, since it is larger than the sum of its proper divisors (143309094899).

716545474465 is a wasteful number, since it uses less digits than its factorization.

716545474465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143309094898.

The product of its digits is 56448000, while the sum is 58.

The spelling of 716545474465 in words is "seven hundred sixteen billion, five hundred forty-five million, four hundred seventy-four thousand, four hundred sixty-five".