16419518736 has 20 divisors (see below), whose sum is σ = 42417090192. Its totient is φ = 5473172896.

The previous prime is 16419518719. The next prime is 16419518771. The reversal of 16419518736 is 63781591461.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171036606 + ... + 171036701.

Almost surely, 2^16419518736 is an apocalyptic number.

16419518736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16419518736 is an abundant number, since it is smaller than the sum of its proper divisors (25997571456).

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

16419518736 is a wasteful number, since it uses less digits than its factorization.

16419518736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342073318 (or 342073312 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 16419518736 in words is "sixteen billion, four hundred nineteen million, five hundred eighteen thousand, seven hundred thirty-six".