22117564754 has 4 divisors (see below), whose sum is σ = 33176347134. Its totient is φ = 11058782376.

The previous prime is 22117564751. The next prime is 22117564771. The reversal of 22117564754 is 45746571122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19095094225 + 3022470529 = 138185^2 + 54977^2 .

It is not an unprimeable number, because it can be changed into a prime (22117564751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5529391187 + ... + 5529391190.

Almost surely, 2^22117564754 is an apocalyptic number.

22117564754 is a deficient number, since it is larger than the sum of its proper divisors (11058782380).

22117564754 is a wasteful number, since it uses less digits than its factorization.

22117564754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058782379.

The product of its digits is 470400, while the sum is 44.

The spelling of 22117564754 in words is "twenty-two billion, one hundred seventeen million, five hundred sixty-four thousand, seven hundred fifty-four".