18592742227661 has 8 divisors (see below), whose sum is σ = 21700951415040. Its totient is φ = 15597558829008.

The previous prime is 18592742227613. The next prime is 18592742227663. The reversal of 18592742227661 is 16672224729581.

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 18592742227661 - 2⁶ = 18592742227597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18592742227594 and 18592742227603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18592742227663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28256446826 + ... + 28256447483.

It is an arithmetic number, because the mean of its divisors is an integer number (2712618926880).

Almost surely, 2^{18592742227661} is an apocalyptic number.

It is an amenable number.

18592742227661 is a deficient number, since it is larger than the sum of its proper divisors (3108209187379).

18592742227661 is an equidigital number, since it uses as much as digits as its factorization.

18592742227661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56512894363.

The product of its digits is 40642560, while the sum is 62.

The spelling of 18592742227661 in words is "eighteen trillion, five hundred ninety-two billion, seven hundred forty-two million, two hundred twenty-seven thousand, six hundred sixty-one".