14971385520 has 1260 divisors, whose sum is σ = 67859246016. Its totient is φ = 3056901120.

The previous prime is 14971385519. The next prime is 14971385567. The reversal of 14971385520 is 2558317941.

14971385520 is a `hidden beast` number, since 1 + 4 + 97 + 1 + 3 + 8 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1260).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 251 ways as a sum of consecutive naturals, for example, 482947905 + ... + 482947935.

Almost surely, 2^14971385520 is an apocalyptic number.

14971385520 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 14971385520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33929623008).

14971385520 is an abundant number, since it is smaller than the sum of its proper divisors (52887860496).

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

14971385520 is a wasteful number, since it uses less digits than its factorization.

14971385520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 14971385520 in words is "fourteen billion, nine hundred seventy-one million, three hundred eighty-five thousand, five hundred twenty".