20307100800 has 192 divisors, whose sum is σ = 76441982400. Its totient is φ = 4641607680.

The previous prime is 20307100771. The next prime is 20307100817. The reversal of 20307100800 is 800170302.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83895 + ... + 218294.

It is an arithmetic number, because the mean of its divisors is an integer number (398135325).

Almost surely, 2^20307100800 is an apocalyptic number.

20307100800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20307100800 is an abundant number, since it is smaller than the sum of its proper divisors (56134881600).

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

20307100800 is a wasteful number, since it uses less digits than its factorization.

20307100800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302223 (or 302206 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The spelling of 20307100800 in words is "twenty billion, three hundred seven million, one hundred thousand, eight hundred".