16545727373745 has 32 divisors (see below), whose sum is σ = 26681522845824. Its totient is φ = 8754966604800.

The previous prime is 16545727373741. The next prime is 16545727373767. The reversal of 16545727373745 is 54737372754561.

It is a happy number.

16545727373745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16545727373745 - 2² = 16545727373741 is a prime.

It is a super-2 number, since 2×16545727373745² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16545727373741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7384809 + ... + 9360921.

It is an arithmetic number, because the mean of its divisors is an integer number (833797588932).

Almost surely, 2^{16545727373745} is an apocalyptic number.

16545727373745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16545727373745 is a deficient number, since it is larger than the sum of its proper divisors (10135795472079).

16545727373745 is a wasteful number, since it uses less digits than its factorization.

16545727373745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980513.

The product of its digits is 518616000, while the sum is 66.

The spelling of 16545727373745 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-seven million, three hundred seventy-three thousand, seven hundred forty-five".