22145004401552 has 20 divisors (see below), whose sum is σ = 43818838498176. Its totient is φ = 10836917047200.

The previous prime is 22145004401551. The next prime is 22145004401579. The reversal of 22145004401552 is 25510440054122.

It is not an unprimeable number, because it can be changed into a prime (22145004401551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14724071324 + ... + 14724072827.

Almost surely, 2^{22145004401552} is an apocalyptic number.

It is an amenable number.

22145004401552 is a deficient number, since it is larger than the sum of its proper divisors (21673834096624).

22145004401552 is a wasteful number, since it uses less digits than its factorization.

22145004401552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29448144206 (or 29448144200 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 22145004401552 its reverse (25510440054122), we get a palindrome (47655444455674).

The spelling of 22145004401552 in words is "twenty-two trillion, one hundred forty-five billion, four million, four hundred one thousand, five hundred fifty-two".