716520651 has 32 divisors (see below), whose sum is σ = 1223305728. Its totient is φ = 362154240.

The previous prime is 716520643. The next prime is 716520677. The reversal of 716520651 is 156025617.

It is not a de Polignac number, because 716520651 - 2³ = 716520643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (716520601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33370 + ... + 50463.

It is an arithmetic number, because the mean of its divisors is an integer number (38228304).

Almost surely, 2^716520651 is an apocalyptic number.

716520651 is a deficient number, since it is larger than the sum of its proper divisors (506785077).

716520651 is a wasteful number, since it uses less digits than its factorization.

716520651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83891.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 716520651 is about 26767.9033732566. The cubic root of 716520651 is about 894.8348793935.

The spelling of 716520651 in words is "seven hundred sixteen million, five hundred twenty thousand, six hundred fifty-one".