64406804022 has 32 divisors (see below), whose sum is σ = 156137708160. Its totient is φ = 19517213160.

The previous prime is 64406803963. The next prime is 64406804023. The reversal of 64406804022 is 22040860446.

It is a happy number.

64406804022 is a `hidden beast` number, since 644 + 0 + 6 + 8 + 0 + 4 + 0 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64406804023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54213888 + ... + 54215075.

It is an arithmetic number, because the mean of its divisors is an integer number (4879303380).

Almost surely, 2^64406804022 is an apocalyptic number.

64406804022 is an abundant number, since it is smaller than the sum of its proper divisors (91730904138).

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

64406804022 is a wasteful number, since it uses less digits than its factorization.

64406804022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108428985 (or 108428979 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 64406804022 in words is "sixty-four billion, four hundred six million, eight hundred four thousand, twenty-two".