16440350990 has 32 divisors (see below), whose sum is σ = 35809573824. Its totient is φ = 5305121280.

The previous prime is 16440350963. The next prime is 16440350999. The reversal of 16440350990 is 9905304461.

It is a super-3 number, since 3×16440350990³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16440350999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6906521 + ... + 6908900.

It is an arithmetic number, because the mean of its divisors is an integer number (1119049182).

Almost surely, 2^16440350990 is an apocalyptic number.

16440350990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16440350990 is an abundant number, since it is smaller than the sum of its proper divisors (19369222834).

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

16440350990 is a wasteful number, since it uses less digits than its factorization.

16440350990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815452.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 16440350990 in words is "sixteen billion, four hundred forty million, three hundred fifty thousand, nine hundred ninety".