20299999955 has 8 divisors (see below), whose sum is σ = 24433597104. Its totient is φ = 16190935200.

The previous prime is 20299999949. The next prime is 20299999957. The reversal of 20299999955 is 55999999202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20299999955 - 2²⁸ = 20031564499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20299999957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6131276 + ... + 6134585.

It is an arithmetic number, because the mean of its divisors is an integer number (3054199638).

Almost surely, 2^20299999955 is an apocalyptic number.

20299999955 is a deficient number, since it is larger than the sum of its proper divisors (4133597149).

20299999955 is a wasteful number, since it uses less digits than its factorization.

20299999955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266197.

The product of its (nonzero) digits is 53144100, while the sum is 68.

The spelling of 20299999955 in words is "twenty billion, two hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-five".