22040446064 has 40 divisors (see below), whose sum is σ = 52557990240. Its totient is φ = 8719296768.

The previous prime is 22040446033. The next prime is 22040446091. The reversal of 22040446064 is 46064404022.

It is a self number, because there is not a number n which added to its sum of digits gives 22040446064.

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, 7567379 + ... + 7570290.

It is an arithmetic number, because the mean of its divisors is an integer number (1313949756).

Almost surely, 2^22040446064 is an apocalyptic number.

It is an amenable number.

22040446064 is an abundant number, since it is smaller than the sum of its proper divisors (30517544176).

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

22040446064 is a wasteful number, since it uses less digits than its factorization.

22040446064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137697 (or 15137691 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 22040446064 in words is "twenty-two billion, forty million, four hundred forty-six thousand, sixty-four".