651166160505 has 32 divisors (see below), whose sum is σ = 1190751335424. Its totient is φ = 297664084416.

The previous prime is 651166160471. The next prime is 651166160507. The reversal of 651166160505 is 505061661156.

It is not a de Polignac number, because 651166160505 - 2⁷ = 651166160377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (651166160507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2862694 + ... + 3081776.

It is an arithmetic number, because the mean of its divisors is an integer number (37210979232).

Almost surely, 2^651166160505 is an apocalyptic number.

It is an amenable number.

651166160505 is a deficient number, since it is larger than the sum of its proper divisors (539585174919).

651166160505 is a wasteful number, since it uses less digits than its factorization.

651166160505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247405.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 651166160505 in words is "six hundred fifty-one billion, one hundred sixty-six million, one hundred sixty thousand, five hundred five".