14971371520 has 272 divisors, whose sum is σ = 42127267968. Its totient is φ = 5001707520.

The previous prime is 14971371517. The next prime is 14971371631. The reversal of 14971371520 is 2517317941.

It is a happy number.

It is a super-2 number, since 2×14971371520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139919307 + ... + 139919413.

Almost surely, 2^14971371520 is an apocalyptic number.

14971371520 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 14971371520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21063633984).

14971371520 is an abundant number, since it is smaller than the sum of its proper divisors (27155896448).

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

14971371520 is an frugal number, since it uses more digits than its factorization.

14971371520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 14971371520 in words is "fourteen billion, nine hundred seventy-one million, three hundred seventy-one thousand, five hundred twenty".