996018386490 has 80 divisors (see below), whose sum is σ = 2698627203360. Its totient is φ = 263577356640.

The previous prime is 996018386437. The next prime is 996018386491. The reversal of 996018386490 is 94683810699.

It is a happy number.

996018386490 is a `hidden beast` number, since 9 + 9 + 60 + 1 + 8 + 3 + 86 + 490 = 666.

It is a super-2 number, since 2×996018386490² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (996018386491) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4587220 + ... + 4799439.

It is an arithmetic number, because the mean of its divisors is an integer number (33732840042).

Almost surely, 2^996018386490 is an apocalyptic number.

996018386490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

996018386490 is an abundant number, since it is smaller than the sum of its proper divisors (1702608816870).

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

996018386490 is a wasteful number, since it uses less digits than its factorization.

996018386490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386809 (or 9386800 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 996018386490 in words is "nine hundred ninety-six billion, eighteen million, three hundred eighty-six thousand, four hundred ninety".