651166005 has 64 divisors (see below), whose sum is σ = 1293926400. Its totient is φ = 272885760.

The previous prime is 651165979. The next prime is 651166013. The reversal of 651166005 is 500661156.

It is not a de Polignac number, because 651166005 - 2⁷ = 651165877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56581 + ... + 67109.

It is an arithmetic number, because the mean of its divisors is an integer number (20217600).

Almost surely, 2^651166005 is an apocalyptic number.

It is an amenable number.

651166005 is a deficient number, since it is larger than the sum of its proper divisors (642760395).

651166005 is a wasteful number, since it uses less digits than its factorization.

651166005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10594.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 651166005 is about 25517.9545614456. The cubic root of 651166005 is about 866.7567647127.

The spelling of 651166005 in words is "six hundred fifty-one million, one hundred sixty-six thousand, five".