22156513606325 has 24 divisors (see below), whose sum is σ = 31524040457280. Its totient is φ = 15132507840000.

The previous prime is 22156513606321. The next prime is 22156513606363. The reversal of 22156513606325 is 52360631565122.

22156513606325 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 22156513606325 - 2² = 22156513606321 is a prime.

It is a super-2 number, since 2×22156513606325² (a number of 27 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 22156513606325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156513606321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252164540 + ... + 252252389.

It is an arithmetic number, because the mean of its divisors is an integer number (1313501685720).

Almost surely, 2^{22156513606325} is an apocalyptic number.

22156513606325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22156513606325 is a deficient number, since it is larger than the sum of its proper divisors (9367526850955).

22156513606325 is a wasteful number, since it uses less digits than its factorization.

22156513606325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504417197 (or 504417192 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 22156513606325 in words is "twenty-two trillion, one hundred fifty-six billion, five hundred thirteen million, six hundred six thousand, three hundred twenty-five".