90446618148 has 24 divisors (see below), whose sum is σ = 211049512128. Its totient is φ = 30147815136.

The previous prime is 90446618123. The next prime is 90446618189. The reversal of 90446618148 is 84181664409.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90446618148.

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 7 ways as a sum of consecutive naturals, for example, 274090 + ... + 505982.

It is an arithmetic number, because the mean of its divisors is an integer number (8793729672).

Almost surely, 2^90446618148 is an apocalyptic number.

It is an amenable number.

90446618148 is an abundant number, since it is smaller than the sum of its proper divisors (120602893980).

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

90446618148 is a wasteful number, since it uses less digits than its factorization.

90446618148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264403 (or 264401 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 90446618148 in words is "ninety billion, four hundred forty-six million, six hundred eighteen thousand, one hundred forty-eight".