22661356115647 has 8 divisors (see below), whose sum is σ = 23089003034256. Its totient is φ = 22233711943872.

The previous prime is 22661356115641. The next prime is 22661356115669. The reversal of 22661356115647 is 74651165316622.

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 22661356115647 - 2¹⁵ = 22661356082879 is a prime.

It is a super-2 number, since 2×22661356115647² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22661356115641) 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, 24833728 + ... + 25730074.

It is an arithmetic number, because the mean of its divisors is an integer number (2886125379282).

Almost surely, 2^{22661356115647} is an apocalyptic number.

22661356115647 is a deficient number, since it is larger than the sum of its proper divisors (427646918609).

22661356115647 is an equidigital number, since it uses as much as digits as its factorization.

22661356115647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373417.

The product of its digits is 10886400, while the sum is 55.

The spelling of 22661356115647 in words is "twenty-two trillion, six hundred sixty-one billion, three hundred fifty-six million, one hundred fifteen thousand, six hundred forty-seven".