22173815061 has 6 divisors (see below), whose sum is σ = 32028843990. Its totient is φ = 14782543368.

The previous prime is 22173815051. The next prime is 22173815113. The reversal of 22173815061 is 16051837122.

22173815061 is a `hidden beast` number, since 2 + 2 + 1 + 73 + 81 + 506 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13692510225 + 8481304836 = 117015^2 + 92094^2 .

It is not a de Polignac number, because 22173815061 - 2⁷ = 22173814933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173815051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1231878606 + ... + 1231878623.

It is an arithmetic number, because the mean of its divisors is an integer number (5338140665).

Almost surely, 2^22173815061 is an apocalyptic number.

It is an amenable number.

22173815061 is a deficient number, since it is larger than the sum of its proper divisors (9855028929).

22173815061 is a wasteful number, since it uses less digits than its factorization.

22173815061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463757235 (or 2463757232 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 22173815061 in words is "twenty-two billion, one hundred seventy-three million, eight hundred fifteen thousand, sixty-one".