22165066134445 has 8 divisors (see below), whose sum is σ = 28644085466136. Its totient is φ = 16368048837696.

The previous prime is 22165066134403. The next prime is 22165066134461. The reversal of 22165066134445 is 54443166056122.

It can be written as a sum of positive squares in 4 ways, for example, as 2210021184996 + 19955044949449 = 1486614^2 + 4467107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22165066134445 - 2⁹ = 22165066133933 is a prime.

It is a super-2 number, since 2×22165066134445² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170500508662 + ... + 170500508791.

It is an arithmetic number, because the mean of its divisors is an integer number (3580510683267).

Almost surely, 2^{22165066134445} is an apocalyptic number.

It is an amenable number.

22165066134445 is a deficient number, since it is larger than the sum of its proper divisors (6479019331691).

22165066134445 is a wasteful number, since it uses less digits than its factorization.

22165066134445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341001017471.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 22165066134445 in words is "twenty-two trillion, one hundred sixty-five billion, sixty-six million, one hundred thirty-four thousand, four hundred forty-five".