990418022000 has 80 divisors (see below), whose sum is σ = 2612542724064. Its totient is φ = 360152000000.

The previous prime is 990418021987. The next prime is 990418022039. The reversal of 990418022000 is 220814099.

990418022000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22487501 + ... + 22531500.

Almost surely, 2^990418022000 is an apocalyptic number.

It is an amenable number.

990418022000 is an abundant number, since it is smaller than the sum of its proper divisors (1622124702064).

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

990418022000 is a wasteful number, since it uses less digits than its factorization.

990418022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45019035 (or 45019019 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

Adding to 990418022000 its reverse (220814099), we get a palindrome (990638836099).

The spelling of 990418022000 in words is "nine hundred ninety billion, four hundred eighteen million, twenty-two thousand".