22165134546623 has 4 divisors (see below), whose sum is σ = 23468965990560. Its totient is φ = 20861303102688.

The previous prime is 22165134546593. The next prime is 22165134546641. The reversal of 22165134546623 is 32664543156122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22165134546623 - 2¹⁸ = 22165134284479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22165134546323) 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, 651915721943 + ... + 651915721976.

It is an arithmetic number, because the mean of its divisors is an integer number (5867241497640).

Almost surely, 2^{22165134546623} is an apocalyptic number.

22165134546623 is a deficient number, since it is larger than the sum of its proper divisors (1303831443937).

22165134546623 is a wasteful number, since it uses less digits than its factorization.

22165134546623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303831443936.

The product of its digits is 6220800, while the sum is 50.

The spelling of 22165134546623 in words is "twenty-two trillion, one hundred sixty-five billion, one hundred thirty-four million, five hundred forty-six thousand, six hundred twenty-three".