22490369145 has 32 divisors (see below), whose sum is σ = 39989088000. Its totient is φ = 11993000832.

The previous prime is 22490369119. The next prime is 22490369189. The reversal of 22490369145 is 54196309422.

22490369145 is a `hidden beast` number, since 2 + 2 + 490 + 36 + 91 + 45 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-22490369145 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 22490369145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1622956 + ... + 1636754.

It is an arithmetic number, because the mean of its divisors is an integer number (1249659000).

Almost surely, 2^22490369145 is an apocalyptic number.

It is an amenable number.

22490369145 is a deficient number, since it is larger than the sum of its proper divisors (17498718855).

22490369145 is a wasteful number, since it uses less digits than its factorization.

22490369145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25886 (or 25880 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 22490369145 in words is "twenty-two billion, four hundred ninety million, three hundred sixty-nine thousand, one hundred forty-five".