646348518054 has 40 divisors (see below), whose sum is σ = 1533493549368. Its totient is φ = 202776004800.

The previous prime is 646348517987. The next prime is 646348518059. The reversal of 646348518054 is 450815843646.

646348518054 is a `hidden beast` number, since 6 + 46 + 34 + 8 + 518 + 0 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646348518059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117344472 + ... + 117349979.

Almost surely, 2^646348518054 is an apocalyptic number.

646348518054 is an abundant number, since it is smaller than the sum of its proper divisors (887145031314).

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

646348518054 is a wasteful number, since it uses less digits than its factorization.

646348518054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234694482 (or 234694473 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 646348518054 in words is "six hundred forty-six billion, three hundred forty-eight million, five hundred eighteen thousand, fifty-four".