20678383300 has 72 divisors (see below), whose sum is σ = 46532412360. Its totient is φ = 7966694400.

The previous prime is 20678383277. The next prime is 20678383321. The reversal of 20678383300 is 338387602.

It can be written as a sum of positive squares in 12 ways, for example, as 13846699584 + 6831683716 = 117672^2 + 82654^2 .

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, 1212432 + ... + 1229368.

It is an arithmetic number, because the mean of its divisors is an integer number (646283505).

Almost surely, 2^20678383300 is an apocalyptic number.

20678383300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20678383300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23266206180).

20678383300 is an abundant number, since it is smaller than the sum of its proper divisors (25854029060).

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

20678383300 is a wasteful number, since it uses less digits than its factorization.

20678383300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17401 (or 17394 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 20678383300 in words is "twenty billion, six hundred seventy-eight million, three hundred eighty-three thousand, three hundred".