90668002320 has 160 divisors (see below), whose sum is σ = 356915370240. Its totient is φ = 20724111360.

The previous prime is 90668002309. The next prime is 90668002333. The reversal of 90668002320 is 2320086609.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2983161 + ... + 3013400.

It is an arithmetic number, because the mean of its divisors is an integer number (2230721064).

Almost surely, 2^90668002320 is an apocalyptic number.

90668002320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

90668002320 is an abundant number, since it is smaller than the sum of its proper divisors (266247367920).

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

90668002320 is a wasteful number, since it uses less digits than its factorization.

90668002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996590 (or 5996578 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 90668002320 its reverse (2320086609), we get a palindrome (92988088929).

The spelling of 90668002320 in words is "ninety billion, six hundred sixty-eight million, two thousand, three hundred twenty".