22245666780 has 48 divisors (see below), whose sum is σ = 62355071520. Its totient is φ = 5925777408.

The previous prime is 22245666731. The next prime is 22245666791. The reversal of 22245666780 is 8766654222.

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, 143809 + ... + 255288.

It is an arithmetic number, because the mean of its divisors is an integer number (1299063990).

Almost surely, 2^22245666780 is an apocalyptic number.

22245666780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22245666780 is an abundant number, since it is smaller than the sum of its proper divisors (40109404740).

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

22245666780 is a wasteful number, since it uses less digits than its factorization.

22245666780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400038 (or 400036 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 22245666780 in words is "twenty-two billion, two hundred forty-five million, six hundred sixty-six thousand, seven hundred eighty".