16396903377480 has 384 divisors, whose sum is σ = 51533724769920. Its totient is φ = 4172508426240.

The previous prime is 16396903377427. The next prime is 16396903377487. The reversal of 16396903377480 is 8477330969361.

It is a happy number.

It is a Cunningham number, because it is equal to 4049309²-1.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16396903377487) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1733099950 + ... + 1733109410.

It is an arithmetic number, because the mean of its divisors is an integer number (134202408255).

Almost surely, 2^{16396903377480} is an apocalyptic number.

16396903377480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16396903377480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25766862384960).

16396903377480 is an abundant number, since it is smaller than the sum of its proper divisors (35136821392440).

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

16396903377480 is a wasteful number, since it uses less digits than its factorization.

16396903377480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741 (or 9694 counting only the distinct ones).

The product of its (nonzero) digits is 123451776, while the sum is 66.

The spelling of 16396903377480 in words is "sixteen trillion, three hundred ninety-six billion, nine hundred three million, three hundred seventy-seven thousand, four hundred eighty".