646550113005 has 24 divisors (see below), whose sum is σ = 1120719075840. Its totient is φ = 344816815200.

The previous prime is 646550112973. The next prime is 646550113019. The reversal of 646550113005 is 500311055646.

646550113005 is a `hidden beast` number, since 64 + 6 + 550 + 11 + 30 + 0 + 5 = 666.

It is not a de Polignac number, because 646550113005 - 2⁵ = 646550112973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1538476 + ... + 1913114.

It is an arithmetic number, because the mean of its divisors is an integer number (46696628160).

Almost surely, 2^646550113005 is an apocalyptic number.

It is an amenable number.

646550113005 is a deficient number, since it is larger than the sum of its proper divisors (474168962835).

646550113005 is a wasteful number, since it uses less digits than its factorization.

646550113005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413001 (or 412998 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 646550113005 in words is "six hundred forty-six billion, five hundred fifty million, one hundred thirteen thousand, five".