22756640155 has 8 divisors (see below), whose sum is σ = 27416766384. Its totient is φ = 18132780000.

The previous prime is 22756640131. The next prime is 22756640171. The reversal of 22756640155 is 55104665722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22756640155 - 2⁹ = 22756639643 is a prime.

It is a super-2 number, since 2×22756640155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9065136 + ... + 9067645.

It is an arithmetic number, because the mean of its divisors is an integer number (3427095798).

Almost surely, 2^22756640155 is an apocalyptic number.

22756640155 is a deficient number, since it is larger than the sum of its proper divisors (4660126229).

22756640155 is a wasteful number, since it uses less digits than its factorization.

22756640155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18133037.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 22756640155 in words is "twenty-two billion, seven hundred fifty-six million, six hundred forty thousand, one hundred fifty-five".