16545723556404 has 48 divisors (see below), whose sum is σ = 44726339493248. Its totient is φ = 4662591372288.

The previous prime is 16545723556399. The next prime is 16545723556441. The reversal of 16545723556404 is 40465532754561.

16545723556404 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 2×16545723556404² (a number of 27 digits) contains 22 as substring.

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, 1349123317 + ... + 1349135580.

Almost surely, 2^{16545723556404} is an apocalyptic number.

16545723556404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16545723556404 is an abundant number, since it is smaller than the sum of its proper divisors (28180615936844).

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

16545723556404 is a wasteful number, since it uses less digits than its factorization.

16545723556404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698258984 (or 2698258982 counting only the distinct ones).

The product of its (nonzero) digits is 60480000, while the sum is 57.

The spelling of 16545723556404 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-three million, five hundred fifty-six thousand, four hundred four".