22561540154 has 8 divisors (see below), whose sum is σ = 34397102388. Its totient is φ = 11095839360.

The previous prime is 22561540153. The next prime is 22561540159. The reversal of 22561540154 is 45104516522.

It can be written as a sum of positive squares in 2 ways, for example, as 22294969225 + 266570929 = 149315^2 + 16327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22561540153) 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, 92465207 + ... + 92465450.

Almost surely, 2^22561540154 is an apocalyptic number.

22561540154 is a deficient number, since it is larger than the sum of its proper divisors (11835562234).

22561540154 is a wasteful number, since it uses less digits than its factorization.

22561540154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184930720.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 22561540154 in words is "twenty-two billion, five hundred sixty-one million, five hundred forty thousand, one hundred fifty-four".