16051661620611 has 8 divisors (see below), whose sum is σ = 21402322302144. Its totient is φ = 10701054343080.

The previous prime is 16051661620601. The next prime is 16051661620699. The reversal of 16051661620611 is 11602616615061.

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

It is not a de Polignac number, because 16051661620611 - 2²⁶ = 16051594511747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16051661620601) 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, 12644325 + ... + 13855766.

It is an arithmetic number, because the mean of its divisors is an integer number (2675290287768).

Almost surely, 2^{16051661620611} is an apocalyptic number.

16051661620611 is a deficient number, since it is larger than the sum of its proper divisors (5350660681533).

16051661620611 is a wasteful number, since it uses less digits than its factorization.

16051661620611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26702001.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 16051661620611 in words is "sixteen trillion, fifty-one billion, six hundred sixty-one million, six hundred twenty thousand, six hundred eleven".