22145353250500 has 24 divisors (see below), whose sum is σ = 48365451500184. Its totient is φ = 8858141300000.

The previous prime is 22145353250491. The next prime is 22145353250507. The reversal of 22145353250500 is 505235354122.

It can be written as a sum of positive squares in 4 ways, for example, as 662573208196 + 21482780042304 = 813986^2 + 4634952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22145353250500.

It is not an unprimeable number, because it can be changed into a prime (22145353250507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22145352751 + ... + 22145353750.

It is an arithmetic number, because the mean of its divisors is an integer number (2015227145841).

Almost surely, 2^{22145353250500} is an apocalyptic number.

22145353250500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22145353250500 is an abundant number, since it is smaller than the sum of its proper divisors (26220098249684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22145353250500 is a wasteful number, since it uses less digits than its factorization.

22145353250500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44290706520 (or 44290706508 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 22145353250500 in words is "twenty-two trillion, one hundred forty-five billion, three hundred fifty-three million, two hundred fifty thousand, five hundred".