16091963472 has 80 divisors (see below), whose sum is σ = 44813881728. Its totient is φ = 4946373120.

The previous prime is 16091963467. The next prime is 16091963477. The reversal of 16091963472 is 27436919061.

It is an interprime number because it is at equal distance from previous prime (16091963467) and next prime (16091963477).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16091963477) 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, 630838 + ... + 655850.

Almost surely, 2^16091963472 is an apocalyptic number.

16091963472 is a gapful number since it is divisible by the number (12) 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 16091963472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22406940864).

16091963472 is an abundant number, since it is smaller than the sum of its proper divisors (28721918256).

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

16091963472 is a wasteful number, since it uses less digits than its factorization.

16091963472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26068 (or 26062 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 16091963472 in words is "sixteen billion, ninety-one million, nine hundred sixty-three thousand, four hundred seventy-two".