22541640354450 has 144 divisors (see below), whose sum is σ = 70246609018560. Its totient is φ = 5075473772160.

The previous prime is 22541640354433. The next prime is 22541640354451. The reversal of 22541640354450 is 5445304614522.

It is a happy number.

22541640354450 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 16 + 40 + 3 + 544 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 22541640354396 and 22541640354405.

It is not an unprimeable number, because it can be changed into a prime (22541640354451) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53192505 + ... + 53614604.

It is an arithmetic number, because the mean of its divisors is an integer number (487823673740).

Almost surely, 2^{22541640354450} is an apocalyptic number.

22541640354450 is an abundant number, since it is smaller than the sum of its proper divisors (47704968664110).

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

22541640354450 is a wasteful number, since it uses less digits than its factorization.

22541640354450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106807201 (or 106807193 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

Adding to 22541640354450 its reverse (5445304614522), we get a palindrome (27986944968972).

The spelling of 22541640354450 in words is "twenty-two trillion, five hundred forty-one billion, six hundred forty million, three hundred fifty-four thousand, four hundred fifty".