16016015661 has 8 divisors (see below), whose sum is σ = 22283152320. Its totient is φ = 10213111392.

The previous prime is 16016015647. The next prime is 16016015669. The reversal of 16016015661 is 16651061061.

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

It is not a de Polignac number, because 16016015661 - 2¹⁴ = 16015999277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16016015669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116058016 + ... + 116058153.

It is an arithmetic number, because the mean of its divisors is an integer number (2785394040).

Almost surely, 2^16016015661 is an apocalyptic number.

It is an amenable number.

16016015661 is a deficient number, since it is larger than the sum of its proper divisors (6267136659).

16016015661 is a wasteful number, since it uses less digits than its factorization.

16016015661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232116195.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 16016015661 in words is "sixteen billion, sixteen million, fifteen thousand, six hundred sixty-one".