16545655437264 has 80 divisors (see below), whose sum is σ = 47498770598400. Its totient is φ = 5514450695424.

The previous prime is 16545655437263. The next prime is 16545655437307. The reversal of 16545655437264 is 46273455654561.

It is a happy number.

16545655437264 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 5 + 6 + 554 + 3 + 72 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545655437263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445057 + ... + 5769695.

It is an arithmetic number, because the mean of its divisors is an integer number (593734632480).

Almost surely, 2^{16545655437264} is an apocalyptic number.

It is an amenable number.

16545655437264 is an abundant number, since it is smaller than the sum of its proper divisors (30953115161136).

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

16545655437264 is a wasteful number, since it uses less digits than its factorization.

16545655437264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331849 (or 5331837 counting only the distinct ones).

The product of its digits is 362880000, while the sum is 63.

The spelling of 16545655437264 in words is "sixteen trillion, five hundred forty-five billion, six hundred fifty-five million, four hundred thirty-seven thousand, two hundred sixty-four".