90222699856537 has 4 divisors (see below), whose sum is σ = 94145425937280. Its totient is φ = 86299973775796.

The previous prime is 90222699856481. The next prime is 90222699856543. The reversal of 90222699856537 is 73565899622209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90222699856537 - 2¹¹ = 90222699854489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90222699856537.

It is not an unprimeable number, because it can be changed into a prime (90222699856567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961363040337 + ... + 1961363040382.

It is an arithmetic number, because the mean of its divisors is an integer number (23536356484320).

Almost surely, 2^{90222699856537} is an apocalyptic number.

It is an amenable number.

90222699856537 is a deficient number, since it is larger than the sum of its proper divisors (3922726080743).

90222699856537 is a wasteful number, since it uses less digits than its factorization.

90222699856537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922726080742.

The product of its (nonzero) digits is 881798400, while the sum is 73.

The spelling of 90222699856537 in words is "ninety trillion, two hundred twenty-two billion, six hundred ninety-nine million, eight hundred fifty-six thousand, five hundred thirty-seven".