16528247216772 has 12 divisors (see below), whose sum is σ = 38565910172496. Its totient is φ = 5509415738920.

The previous prime is 16528247216737. The next prime is 16528247216813. The reversal of 16528247216772 is 27761274282561.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688676967354 + ... + 688676967377.

It is an arithmetic number, because the mean of its divisors is an integer number (3213825847708).

Almost surely, 2^{16528247216772} is an apocalyptic number.

16528247216772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16528247216772 is an abundant number, since it is smaller than the sum of its proper divisors (22037662955724).

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

16528247216772 is a wasteful number, since it uses less digits than its factorization.

16528247216772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377353934738 (or 1377353934736 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 60.

The spelling of 16528247216772 in words is "sixteen trillion, five hundred twenty-eight billion, two hundred forty-seven million, two hundred sixteen thousand, seven hundred seventy-two".