23620226155 has 24 divisors (see below), whose sum is σ = 29071936800. Its totient is φ = 18422933760.

The previous prime is 23620226137. The next prime is 23620226183. The reversal of 23620226155 is 55162202632.

It is a de Polignac number, because none of the positive numbers 2^k-23620226155 is a prime.

It is a super-2 number, since 2×23620226155² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23620226155.

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 23 ways as a sum of consecutive naturals, for example, 5831571 + ... + 5835619.

It is an arithmetic number, because the mean of its divisors is an integer number (1211330700).

Almost surely, 2^23620226155 is an apocalyptic number.

23620226155 is a deficient number, since it is larger than the sum of its proper divisors (5451710645).

23620226155 is an equidigital number, since it uses as much as digits as its factorization.

23620226155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 23620226155 its reverse (55162202632), we get a palindrome (78782428787).

The spelling of 23620226155 in words is "twenty-three billion, six hundred twenty million, two hundred twenty-six thousand, one hundred fifty-five".