22251690495 has 64 divisors (see below), whose sum is σ = 42009638400. Its totient is φ = 11143319040.

The previous prime is 22251690479. The next prime is 22251690509. The reversal of 22251690495 is 59409615222.

22251690495 is a `hidden beast` number, since 2 + 2 + 2 + 516 + 90 + 49 + 5 = 666.

It is not a de Polignac number, because 22251690495 - 2⁴ = 22251690479 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 22251690495.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 251460 + ... + 328230.

It is an arithmetic number, because the mean of its divisors is an integer number (656400600).

Almost surely, 2^22251690495 is an apocalyptic number.

22251690495 is a deficient number, since it is larger than the sum of its proper divisors (19757947905).

22251690495 is a wasteful number, since it uses less digits than its factorization.

22251690495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76917 (or 76911 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 22251690495 in words is "twenty-two billion, two hundred fifty-one million, six hundred ninety thousand, four hundred ninety-five".