204380556064 has 24 divisors (see below), whose sum is σ = 404622131760. Its totient is φ = 101619379776.

The previous prime is 204380556047. The next prime is 204380556073. The reversal of 204380556064 is 460655083402.

It is a self number, because there is not a number n which added to its sum of digits gives 204380556064.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17834754 + ... + 17846209.

It is an arithmetic number, because the mean of its divisors is an integer number (16859255490).

Almost surely, 2^204380556064 is an apocalyptic number.

It is an amenable number.

204380556064 is a deficient number, since it is larger than the sum of its proper divisors (200241575696).

204380556064 is a wasteful number, since it uses less digits than its factorization.

204380556064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35681152 (or 35681144 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 204380556064 in words is "two hundred four billion, three hundred eighty million, five hundred fifty-six thousand, sixty-four".