16166615601 has 8 divisors (see below), whose sum is σ = 21768908544. Its totient is φ = 10671033200.

The previous prime is 16166615573. The next prime is 16166615629. The reversal of 16166615601 is 10651666161.

It is an interprime number because it is at equal distance from previous prime (16166615573) and next prime (16166615629).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16166615601 - 2¹⁰ = 16166614577 is a prime.

It is a super-2 number, since 2×16166615601² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16166615601.

It is not an unprimeable number, because it can be changed into a prime (16166615651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26677281 + ... + 26677886.

It is an arithmetic number, because the mean of its divisors is an integer number (2721113568).

Almost surely, 2^16166615601 is an apocalyptic number.

It is an amenable number.

16166615601 is a deficient number, since it is larger than the sum of its proper divisors (5602292943).

16166615601 is a wasteful number, since it uses less digits than its factorization.

16166615601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53355271.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 16166615601 in words is "sixteen billion, one hundred sixty-six million, six hundred fifteen thousand, six hundred one".