20902992000 has 768 divisors, whose sum is σ = 78726211200. Its totient is φ = 4899840000.

The previous prime is 20902991981. The next prime is 20902992029. The reversal of 20902992000 is 29920902.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 342671970 + ... + 342672030.

Almost surely, 2^20902992000 is an apocalyptic number.

20902992000 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 20902992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39363105600).

20902992000 is an abundant number, since it is smaller than the sum of its proper divisors (57823219200).

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

20902992000 is a wasteful number, since it uses less digits than its factorization.

20902992000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 20902992000 in words is "twenty billion, nine hundred two million, nine hundred ninety-two thousand".