16451401363065 has 256 divisors, whose sum is σ = 32941468800000. Its totient is φ = 7741113090048.

The previous prime is 16451401363009. The next prime is 16451401363069. The reversal of 16451401363065 is 56036310415461.

16451401363065 is a `hidden beast` number, since 1 + 6 + 4 + 5 + 1 + 4 + 0 + 1 + 3 + 630 + 6 + 5 = 666.

It is not a de Polignac number, because 16451401363065 - 2³⁰ = 16450327621241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16451401363065.

It is not an unprimeable number, because it can be changed into a prime (16451401363069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1747727299 + ... + 1747736711.

It is an arithmetic number, because the mean of its divisors is an integer number (128677612500).

Almost surely, 2^{16451401363065} is an apocalyptic number.

16451401363065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16451401363065 is an abundant number, since it is smaller than the sum of its proper divisors (16490067436935).

16451401363065 is a wasteful number, since it uses less digits than its factorization.

16451401363065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881 (or 9875 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 16451401363065 in words is "sixteen trillion, four hundred fifty-one billion, four hundred one million, three hundred sixty-three thousand, sixty-five".