20373775800 has 384 divisors, whose sum is σ = 76720089600. Its totient is φ = 4366172160.

The previous prime is 20373775759. The next prime is 20373775841. The reversal of 20373775800 is 857737302.

It is an interprime number because it is at equal distance from previous prime (20373775759) and next prime (20373775841).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30915871 + ... + 30916529.

It is an arithmetic number, because the mean of its divisors is an integer number (199791900).

Almost surely, 2^20373775800 is an apocalyptic number.

20373775800 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 20373775800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38360044800).

20373775800 is an abundant number, since it is smaller than the sum of its proper divisors (56346313800).

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

20373775800 is a wasteful number, since it uses less digits than its factorization.

20373775800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 20373775800 in words is "twenty billion, three hundred seventy-three million, seven hundred seventy-five thousand, eight hundred".