646414156612 has 24 divisors (see below), whose sum is σ = 1292849490240. Its totient is φ = 277030100640.

The previous prime is 646414156573. The next prime is 646414156621. The reversal of 646414156612 is 216651414646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992339 + ... + 2293957.

It is an arithmetic number, because the mean of its divisors is an integer number (53868728760).

Almost surely, 2^646414156612 is an apocalyptic number.

It is an amenable number.

646414156612 is an abundant number, since it is smaller than the sum of its proper divisors (646435333628).

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

646414156612 is a wasteful number, since it uses less digits than its factorization.

646414156612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378171 (or 378169 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 646414156612 in words is "six hundred forty-six billion, four hundred fourteen million, one hundred fifty-six thousand, six hundred twelve".