16864739457552 has 60 divisors (see below), whose sum is σ = 53940396839680. Its totient is φ = 4818496987584.

The previous prime is 16864739457547. The next prime is 16864739457581. The reversal of 16864739457552 is 25575493746861.

16864739457552 is a `hidden beast` number, since 1 + 6 + 8 + 6 + 47 + 3 + 9 + 4 + 575 + 5 + 2 = 666.

16864739457552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16864739457552² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8365445152 + ... + 8365447167.

Almost surely, 2^{16864739457552} is an apocalyptic number.

16864739457552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16864739457552 is an abundant number, since it is smaller than the sum of its proper divisors (37075657382128).

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

16864739457552 is a wasteful number, since it uses less digits than its factorization.

16864739457552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16730892340 (or 16730892331 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 16864739457552 in words is "sixteen trillion, eight hundred sixty-four billion, seven hundred thirty-nine million, four hundred fifty-seven thousand, five hundred fifty-two".