20992152460 has 24 divisors (see below), whose sum is σ = 44106644736. Its totient is φ = 8392456320.

The previous prime is 20992152457. The next prime is 20992152481. The reversal of 20992152460 is 6425129902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236076 + ... + 312595.

It is an arithmetic number, because the mean of its divisors is an integer number (1837776864).

Almost surely, 2^20992152460 is an apocalyptic number.

20992152460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20992152460 is an abundant number, since it is smaller than the sum of its proper divisors (23114492276).

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

20992152460 is a wasteful number, since it uses less digits than its factorization.

20992152460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550593 (or 550591 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 20992152460 in words is "twenty billion, nine hundred ninety-two million, one hundred fifty-two thousand, four hundred sixty".