22461561642245 has 24 divisors (see below), whose sum is σ = 31186300477920. Its totient is φ = 15475908492000.

The previous prime is 22461561642241. The next prime is 22461561642257. The reversal of 22461561642245 is 54224616516422.

It is not a de Polignac number, because 22461561642245 - 2² = 22461561642241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22461561642193 and 22461561642202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22461561642241) 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, 977002931 + ... + 977025920.

It is an arithmetic number, because the mean of its divisors is an integer number (1299429186580).

Almost surely, 2^{22461561642245} is an apocalyptic number.

It is an amenable number.

22461561642245 is a deficient number, since it is larger than the sum of its proper divisors (8724738835675).

22461561642245 is a wasteful number, since it uses less digits than its factorization.

22461561642245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954028897 (or 1954028886 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 50.

The spelling of 22461561642245 in words is "twenty-two trillion, four hundred sixty-one billion, five hundred sixty-one million, six hundred forty-two thousand, two hundred forty-five".