22661376871 has 12 divisors (see below), whose sum is σ = 26678803032. Its totient is φ = 19190009328.

The previous prime is 22661376833. The next prime is 22661376877. The reversal of 22661376871 is 17867316622.

It is not a de Polignac number, because 22661376871 - 2²³ = 22652988263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22661376877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2781940 + ... + 2790073.

It is an arithmetic number, because the mean of its divisors is an integer number (2223233586).

Almost surely, 2^22661376871 is an apocalyptic number.

22661376871 is a deficient number, since it is larger than the sum of its proper divisors (4017426161).

22661376871 is an equidigital number, since it uses as much as digits as its factorization.

22661376871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572110 (or 5572103 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The spelling of 22661376871 in words is "twenty-two billion, six hundred sixty-one million, three hundred seventy-six thousand, eight hundred seventy-one".