20937340080 has 200 divisors, whose sum is σ = 76996446912. Its totient is φ = 5254834176.

The previous prime is 20937340069. The next prime is 20937340117. The reversal of 20937340080 is 8004373902.

20937340080 is a `hidden beast` number, since 20 + 93 + 73 + 400 + 80 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15129 + ... + 205191.

Almost surely, 2^20937340080 is an apocalyptic number.

20937340080 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 20937340080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38498223456).

20937340080 is an abundant number, since it is smaller than the sum of its proper divisors (56059106832).

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

20937340080 is a wasteful number, since it uses less digits than its factorization.

20937340080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190105 (or 190090 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 20937340080 in words is "twenty billion, nine hundred thirty-seven million, three hundred forty thousand, eighty".