20952297216 has 90 divisors (see below), whose sum is σ = 62476020992. Its totient is φ = 6984092160.

The previous prime is 20952297169. The next prime is 20952297227. The reversal of 20952297216 is 61279225902.

20952297216 is a `hidden beast` number, since 20 + 9 + 522 + 97 + 2 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 484480 + ... + 525951.

Almost surely, 2^20952297216 is an apocalyptic number.

It is an amenable number.

20952297216 is an abundant number, since it is smaller than the sum of its proper divisors (41523723776).

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

20952297216 is an equidigital number, since it uses as much as digits as its factorization.

20952297216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010459 (or 1010436 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 20952297216 in words is "twenty billion, nine hundred fifty-two million, two hundred ninety-seven thousand, two hundred sixteen".