22173915461 has 2 divisors, whose sum is σ = 22173915462. Its totient is φ = 22173915460.

The previous prime is 22173915437. The next prime is 22173915497. The reversal of 22173915461 is 16451937122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19256835361 + 2917080100 = 138769^2 + 54010^2 .

It is a cyclic number.

It is not a de Polignac number, because 22173915461 - 2⁶ = 22173915397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22173914461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11086957730 + 11086957731.

It is an arithmetic number, because the mean of its divisors is an integer number (11086957731).

Almost surely, 2^22173915461 is an apocalyptic number.

It is an amenable number.

22173915461 is a deficient number, since it is larger than the sum of its proper divisors (1).

22173915461 is an equidigital number, since it uses as much as digits as its factorization.

22173915461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The spelling of 22173915461 in words is "twenty-two billion, one hundred seventy-three million, nine hundred fifteen thousand, four hundred sixty-one".