22666693557 has 8 divisors (see below), whose sum is σ = 30225938176. Its totient is φ = 15109288992.

The previous prime is 22666693547. The next prime is 22666693561. The reversal of 22666693557 is 75539666622.

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

It is not a de Polignac number, because 22666693557 - 2¹⁵ = 22666660789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22666693497 and 22666693506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22666693537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431008 + ... + 480729.

It is an arithmetic number, because the mean of its divisors is an integer number (3778242272).

Almost surely, 2^22666693557 is an apocalyptic number.

It is an amenable number.

22666693557 is a deficient number, since it is larger than the sum of its proper divisors (7559244619).

22666693557 is an equidigital number, since it uses as much as digits as its factorization.

22666693557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920027.

The product of its digits is 24494400, while the sum is 57.

The spelling of 22666693557 in words is "twenty-two billion, six hundred sixty-six million, six hundred ninety-three thousand, five hundred fifty-seven".