64642404226022 has 16 divisors (see below), whose sum is σ = 110817226172160. Its totient is φ = 27703468507848.

The previous prime is 64642404226019. The next prime is 64642404226069. The reversal of 64642404226022 is 22062240424646.

It is a happy number.

It is a congruent number.

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, 33958538 + ... + 35811549.

It is an arithmetic number, because the mean of its divisors is an integer number (6926076635760).

Almost surely, 2^{64642404226022} is an apocalyptic number.

64642404226022 is a deficient number, since it is larger than the sum of its proper divisors (46174821946138).

64642404226022 is a wasteful number, since it uses less digits than its factorization.

64642404226022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69836275.

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 64642404226022 in words is "sixty-four trillion, six hundred forty-two billion, four hundred four million, two hundred twenty-six thousand, twenty-two".