22015240246644 has 12 divisors (see below), whose sum is σ = 51368893908864. Its totient is φ = 7338413415544.

The previous prime is 22015240246583. The next prime is 22015240246693. The reversal of 22015240246644 is 44664204251022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22015240246596 and 22015240246605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917301676932 + ... + 917301676955.

It is an arithmetic number, because the mean of its divisors is an integer number (4280741159072).

Almost surely, 2^{22015240246644} is an apocalyptic number.

It is an amenable number.

22015240246644 is an abundant number, since it is smaller than the sum of its proper divisors (29353653662220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22015240246644 is a wasteful number, since it uses less digits than its factorization.

22015240246644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834603353894 (or 1834603353892 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

Adding to 22015240246644 its reverse (44664204251022), we get a palindrome (66679444497666).

The spelling of 22015240246644 in words is "twenty-two trillion, fifteen billion, two hundred forty million, two hundred forty-six thousand, six hundred forty-four".