20914155000 has 480 divisors, whose sum is σ = 75916011600. Its totient is φ = 5184000000.

The previous prime is 20914154999. The next prime is 20914155007. The reversal of 20914155000 is 55141902.

20914155000 is a `hidden beast` number, since 20 + 91 + 4 + 1 + 550 + 0 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914155007) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 52154800 + ... + 52155200.

Almost surely, 2^20914155000 is an apocalyptic number.

20914155000 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 20914155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37958005800).

20914155000 is an abundant number, since it is smaller than the sum of its proper divisors (55001856600).

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

20914155000 is a wasteful number, since it uses less digits than its factorization.

20914155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 20914155000 its reverse (55141902), we get a palindrome (20969296902).

The spelling of 20914155000 in words is "twenty billion, nine hundred fourteen million, one hundred fifty-five thousand".