20803845600 has 180 divisors, whose sum is σ = 75867816024. Its totient is φ = 5547674880.

The previous prime is 20803845593. The next prime is 20803845641. The reversal of 20803845600 is 654830802.

20803845600 is a `hidden beast` number, since 2 + 0 + 8 + 0 + 3 + 8 + 45 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 95724 + ... + 225323.

Almost surely, 2^20803845600 is an apocalyptic number.

20803845600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20803845600 is an abundant number, since it is smaller than the sum of its proper divisors (55063970424).

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

20803845600 is a wasteful number, since it uses less digits than its factorization.

20803845600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321079 (or 321057 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20803845600 in words is "twenty billion, eight hundred three million, eight hundred forty-five thousand, six hundred".