64621611222 has 64 divisors (see below), whose sum is σ = 148577587200. Its totient is φ = 18354741120.

The previous prime is 64621611217. The next prime is 64621611281. The reversal of 64621611222 is 22211612646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5405772 + ... + 5417712.

It is an arithmetic number, because the mean of its divisors is an integer number (2321524800).

Almost surely, 2^64621611222 is an apocalyptic number.

64621611222 is an abundant number, since it is smaller than the sum of its proper divisors (83955975978).

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

64621611222 is a wasteful number, since it uses less digits than its factorization.

64621611222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12701.

The product of its digits is 13824, while the sum is 33.

The spelling of 64621611222 in words is "sixty-four billion, six hundred twenty-one million, six hundred eleven thousand, two hundred twenty-two".