20022473253465 has 12 divisors (see below), whose sum is σ = 34705620306084. Its totient is φ = 10678652401824.

The previous prime is 20022473253463. The next prime is 20022473253479. The reversal of 20022473253465 is 56435237422002.

20022473253465 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 24 + 7 + 32 + 534 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15514562955609 + 4507910297856 = 3938853^2 + 2123184^2 .

It is not a de Polignac number, because 20022473253465 - 2¹ = 20022473253463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 444943850077 = 20022473253465 / (2 + 0 + 0 + 2 + 2 + 4 + 7 + 3 + 2 + 5 + 3 + 4 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 20022473253465.

It is not an unprimeable number, because it can be changed into a prime (20022473253463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222471924994 + ... + 222471925083.

It is an arithmetic number, because the mean of its divisors is an integer number (2892135025507).

Almost surely, 2^{20022473253465} is an apocalyptic number.

It is an amenable number.

20022473253465 is a deficient number, since it is larger than the sum of its proper divisors (14683147052619).

20022473253465 is a wasteful number, since it uses less digits than its factorization.

20022473253465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444943850088 (or 444943850085 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

The spelling of 20022473253465 in words is "twenty trillion, twenty-two billion, four hundred seventy-three million, two hundred fifty-three thousand, four hundred sixty-five".