649169807466 has 32 divisors (see below), whose sum is σ = 1306718437248. Its totient is φ = 214993696320.

The previous prime is 649169807393. The next prime is 649169807483. The reversal of 649169807466 is 664708961946.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649169807397 and 649169807406.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15975811 + ... + 16016393.

It is an arithmetic number, because the mean of its divisors is an integer number (40834951164).

Almost surely, 2^649169807466 is an apocalyptic number.

649169807466 is an abundant number, since it is smaller than the sum of its proper divisors (657548629782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649169807466 is a wasteful number, since it uses less digits than its factorization.

649169807466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57726.

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 649169807466 in words is "six hundred forty-nine billion, one hundred sixty-nine million, eight hundred seven thousand, four hundred sixty-six".