14996891520 has 768 divisors, whose sum is σ = 59880038400. Its totient is φ = 3427909632.

The previous prime is 14996891519. The next prime is 14996891521. The reversal of 14996891520 is 2519869941.

14996891520 is a `hidden beast` number, since 1 + 499 + 68 + 91 + 5 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (14996891519) and next prime (14996891521).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14996891521) 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, 118085697 + ... + 118085823.

It is an arithmetic number, because the mean of its divisors is an integer number (77968800).

Almost surely, 2^14996891520 is an apocalyptic number.

14996891520 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 14996891520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29940019200).

14996891520 is an abundant number, since it is smaller than the sum of its proper divisors (44883146880).

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

14996891520 is a wasteful number, since it uses less digits than its factorization.

14996891520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 14996891520 in words is "fourteen billion, nine hundred ninety-six million, eight hundred ninety-one thousand, five hundred twenty".