22636220361551 has 8 divisors (see below), whose sum is σ = 23849890018800. Its totient is φ = 21424779668160.

The previous prime is 22636220361529. The next prime is 22636220361583. The reversal of 22636220361551 is 15516302263622.

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 22636220361551 - 2⁴² = 18238173850447 is a prime.

It is a super-4 number, since 4×22636220361551⁴ (a number of 55 digits) contains 4444 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 (22636220369551) 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, 557220110 + ... + 557260731.

It is an arithmetic number, because the mean of its divisors is an integer number (2981236252350).

Almost surely, 2^{22636220361551} is an apocalyptic number.

22636220361551 is a deficient number, since it is larger than the sum of its proper divisors (1213669657249).

22636220361551 is a wasteful number, since it uses less digits than its factorization.

22636220361551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114481929.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 22636220361551 in words is "twenty-two trillion, six hundred thirty-six billion, two hundred twenty million, three hundred sixty-one thousand, five hundred fifty-one".