646211206054422 has 32 divisors (see below), whose sum is σ = 1436651167294560. Its totient is φ = 215309795608800.

The previous prime is 646211206054373. The next prime is 646211206054439. The reversal of 646211206054422 is 224450602112646.

646211206054422 is a `hidden beast` number, since 6 + 4 + 6 + 2 + 1 + 1 + 20 + 60 + 544 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2609312329 + ... + 2609559972.

It is an arithmetic number, because the mean of its divisors is an integer number (44895348977955).

Almost surely, 2^{646211206054422} is an apocalyptic number.

646211206054422 is an abundant number, since it is smaller than the sum of its proper divisors (790439961240138).

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

646211206054422 is a wasteful number, since it uses less digits than its factorization.

646211206054422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218874605 (or 5218874599 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 646211206054422 in words is "six hundred forty-six trillion, two hundred eleven billion, two hundred six million, fifty-four thousand, four hundred twenty-two".