22421636152015 has 16 divisors (see below), whose sum is σ = 26946093974688. Its totient is φ = 17910556635136.

The previous prime is 22421636152009. The next prime is 22421636152021. The reversal of 22421636152015 is 51025163612422.

It is an interprime number because it is at equal distance from previous prime (22421636152009) and next prime (22421636152021).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22421636152015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174568659 + ... + 174697051.

It is an arithmetic number, because the mean of its divisors is an integer number (1684130873418).

Almost surely, 2^{22421636152015} is an apocalyptic number.

22421636152015 is a deficient number, since it is larger than the sum of its proper divisors (4524457822673).

22421636152015 is a wasteful number, since it uses less digits than its factorization.

22421636152015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180218.

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 22421636152015 its reverse (51025163612422), we get a palindrome (73446799764437).

The spelling of 22421636152015 in words is "twenty-two trillion, four hundred twenty-one billion, six hundred thirty-six million, one hundred fifty-two thousand, fifteen".