646414552254 has 8 divisors (see below), whose sum is σ = 1292829104520. Its totient is φ = 215471517416.

The previous prime is 646414552243. The next prime is 646414552271. The reversal of 646414552254 is 452255414646.

646414552254 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

646414552254 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53867879349 + ... + 53867879360.

It is an arithmetic number, because the mean of its divisors is an integer number (161603638065).

Almost surely, 2^646414552254 is an apocalyptic number.

646414552254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

646414552254 is a wasteful number, since it uses less digits than its factorization.

646414552254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107735758714.

The product of its digits is 4608000, while the sum is 48.

The spelling of 646414552254 in words is "six hundred forty-six billion, four hundred fourteen million, five hundred fifty-two thousand, two hundred fifty-four".