20083453720 has 256 divisors, whose sum is σ = 54587520000. Its totient is φ = 6564096000.

The previous prime is 20083453679. The next prime is 20083453763. The reversal of 20083453720 is 2735438002.

It is a super-2 number, since 2×20083453720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28649370 + ... + 28650070.

It is an arithmetic number, because the mean of its divisors is an integer number (213232500).

Almost surely, 2^20083453720 is an apocalyptic number.

20083453720 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 20083453720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27293760000).

20083453720 is an abundant number, since it is smaller than the sum of its proper divisors (34504066280).

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

20083453720 is a wasteful number, since it uses less digits than its factorization.

20083453720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 20083453720 in words is "twenty billion, eighty-three million, four hundred fifty-three thousand, seven hundred twenty".