20266254045 has 24 divisors (see below), whose sum is σ = 35155359096. Its totient is φ = 10800304128.

The previous prime is 20266254011. The next prime is 20266254079. The reversal of 20266254045 is 54045266202.

20266254045 is a `hidden beast` number, since 2 + 0 + 26 + 625 + 4 + 0 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (20266254011) and next prime (20266254079).

It can be written as a sum of positive squares in 4 ways, for example, as 3017634489 + 17248619556 = 54933^2 + 131334^2 .

It is not a de Polignac number, because 20266254045 - 2¹⁵ = 20266221277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115252 + ... + 231981.

It is an arithmetic number, because the mean of its divisors is an integer number (1464806629).

Almost surely, 2^20266254045 is an apocalyptic number.

It is an amenable number.

20266254045 is a deficient number, since it is larger than the sum of its proper divisors (14889105051).

20266254045 is a wasteful number, since it uses less digits than its factorization.

20266254045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348541 (or 348538 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 20266254045 in words is "twenty billion, two hundred sixty-six million, two hundred fifty-four thousand, forty-five".