16522451913840 has 80 divisors (see below), whose sum is σ = 52059266568096. Its totient is φ = 4333757875200.

The previous prime is 16522451913817. The next prime is 16522451913841. The reversal of 16522451913840 is 4831915422561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×16522451913840³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16522451913841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564276751 + ... + 564306030.

Almost surely, 2^{16522451913840} is an apocalyptic number.

16522451913840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16522451913840 is an abundant number, since it is smaller than the sum of its proper divisors (35536814654256).

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

16522451913840 is a wasteful number, since it uses less digits than its factorization.

16522451913840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128582858 (or 1128582852 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 16522451913840 in words is "sixteen trillion, five hundred twenty-two billion, four hundred fifty-one million, nine hundred thirteen thousand, eight hundred forty".