651567316771 has 48 divisors (see below), whose sum is σ = 801157767168. Its totient is φ = 527527728000.

The previous prime is 651567316759. The next prime is 651567316781. The reversal of 651567316771 is 177613765156.

It is not a de Polignac number, because 651567316771 - 2¹⁷ = 651567185699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651567316781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127430911 + ... + 127436023.

It is an arithmetic number, because the mean of its divisors is an integer number (16690786816).

Almost surely, 2^651567316771 is an apocalyptic number.

651567316771 is a deficient number, since it is larger than the sum of its proper divisors (149590450397).

651567316771 is a wasteful number, since it uses less digits than its factorization.

651567316771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152 (or 7145 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 55.

The spelling of 651567316771 in words is "six hundred fifty-one billion, five hundred sixty-seven million, three hundred sixteen thousand, seven hundred seventy-one".