16165065037801 has 16 divisors (see below), whose sum is σ = 17051456185344. Its totient is φ = 15294854038464.

The previous prime is 16165065037799. The next prime is 16165065037819. The reversal of 16165065037801 is 10873056056161.

It is a cyclic number.

It is not a de Polignac number, because 16165065037801 - 2¹ = 16165065037799 is a prime.

It is a super-2 number, since 2×16165065037801² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16165065037831) 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, 9232006 + ... + 10842511.

It is an arithmetic number, because the mean of its divisors is an integer number (1065716011584).

Almost surely, 2^{16165065037801} is an apocalyptic number.

It is an amenable number.

16165065037801 is a deficient number, since it is larger than the sum of its proper divisors (886391147543).

16165065037801 is a wasteful number, since it uses less digits than its factorization.

16165065037801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20074920.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 16165065037801 in words is "sixteen trillion, one hundred sixty-five billion, sixty-five million, thirty-seven thousand, eight hundred one".