90670221078822 has 72 divisors (see below), whose sum is σ = 249301053159912. Its totient is φ = 23550706771200.

The previous prime is 90670221078809. The next prime is 90670221078869. The reversal of 90670221078822 is 22887012207609.

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 35 ways as a sum of consecutive naturals, for example, 4672749579 + ... + 4672768982.

It is an arithmetic number, because the mean of its divisors is an integer number (3462514627221).

Almost surely, 2^{90670221078822} is an apocalyptic number.

90670221078822 is an abundant number, since it is smaller than the sum of its proper divisors (158630832081090).

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

90670221078822 is a wasteful number, since it uses less digits than its factorization.

90670221078822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345518594 (or 9345518584 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 90670221078822 in words is "ninety trillion, six hundred seventy billion, two hundred twenty-one million, seventy-eight thousand, eight hundred twenty-two".