64040222046 has 16 divisors (see below), whose sum is σ = 128744075664. Its totient is φ = 21236135424.

The previous prime is 64040221991. The next prime is 64040222047. The reversal of 64040222046 is 64022204046.

It is a super-2 number, since 2×64040222046² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64040222047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27650061 + ... + 27652376.

It is an arithmetic number, because the mean of its divisors is an integer number (8046504729).

Almost surely, 2^64040222046 is an apocalyptic number.

64040222046 is an abundant number, since it is smaller than the sum of its proper divisors (64703853618).

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

64040222046 is a wasteful number, since it uses less digits than its factorization.

64040222046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55302635.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 64040222046 in words is "sixty-four billion, forty million, two hundred twenty-two thousand, forty-six".