22011544545 has 32 divisors (see below), whose sum is σ = 35996590080. Its totient is φ = 11480518080.

The previous prime is 22011544537. The next prime is 22011544547. The reversal of 22011544545 is 54544511022.

It is a happy number.

It is not a de Polignac number, because 22011544545 - 2³ = 22011544537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22011544547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 918060 + ... + 941730.

It is an arithmetic number, because the mean of its divisors is an integer number (1124893440).

Almost surely, 2^22011544545 is an apocalyptic number.

It is an amenable number.

22011544545 is a deficient number, since it is larger than the sum of its proper divisors (13985045535).

22011544545 is a wasteful number, since it uses less digits than its factorization.

22011544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25045.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 22011544545 in words is "twenty-two billion, eleven million, five hundred forty-four thousand, five hundred forty-five".