204770916400 has 60 divisors (see below), whose sum is σ = 494710691400. Its totient is φ = 81450749440.

The previous prime is 204770916379. The next prime is 204770916401. The reversal of 204770916400 is 4619077402.

It is a super-2 number, since 2×204770916400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (204770916401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1358365 + ... + 1501564.

It is an arithmetic number, because the mean of its divisors is an integer number (8245178190).

Almost surely, 2^204770916400 is an apocalyptic number.

204770916400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204770916400 is an abundant number, since it is smaller than the sum of its proper divisors (289939775000).

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

204770916400 is a wasteful number, since it uses less digits than its factorization.

204770916400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860126 (or 2860115 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 204770916400 in words is "two hundred four billion, seven hundred seventy million, nine hundred sixteen thousand, four hundred".