20899458300 has 288 divisors, whose sum is σ = 76357112832. Its totient is φ = 4300369920.

The previous prime is 20899458289. The next prime is 20899458311. The reversal of 20899458300 is 385499802.

It is an interprime number because it is at equal distance from previous prime (20899458289) and next prime (20899458311).

It is a self number, because there is not a number n which added to its sum of digits gives 20899458300.

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, 808374 + ... + 833826.

It is an arithmetic number, because the mean of its divisors is an integer number (265128864).

Almost surely, 2^20899458300 is an apocalyptic number.

20899458300 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 20899458300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38178556416).

20899458300 is an abundant number, since it is smaller than the sum of its proper divisors (55457654532).

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

20899458300 is a wasteful number, since it uses less digits than its factorization.

20899458300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25517 (or 25510 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 20899458300 in words is "twenty billion, eight hundred ninety-nine million, four hundred fifty-eight thousand, three hundred".