16440231416 has 32 divisors (see below), whose sum is σ = 35234144640. Its totient is φ = 7044798048.

The previous prime is 16440231397. The next prime is 16440231421. The reversal of 16440231416 is 61413204461.

It is a super-3 number, since 3×16440231416³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473051 + ... + 506613.

It is an arithmetic number, because the mean of its divisors is an integer number (1101067020).

Almost surely, 2^16440231416 is an apocalyptic number.

It is an amenable number.

16440231416 is an abundant number, since it is smaller than the sum of its proper divisors (18793913224).

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

16440231416 is a wasteful number, since it uses less digits than its factorization.

16440231416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42323 (or 42319 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 16440231416 its reverse (61413204461), we get a palindrome (77853435877).

The spelling of 16440231416 in words is "sixteen billion, four hundred forty million, two hundred thirty-one thousand, four hundred sixteen".