16000112561 has 8 divisors (see below), whose sum is σ = 16071778944. Its totient is φ = 15928606960.

The previous prime is 16000112543. The next prime is 16000112573. The reversal of 16000112561 is 16521100061.

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 16000112561 - 2¹⁰ = 16000111537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16000112761) 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, 161531 + ... + 241023.

It is an arithmetic number, because the mean of its divisors is an integer number (2008972368).

Almost surely, 2^16000112561 is an apocalyptic number.

It is an amenable number.

16000112561 is a deficient number, since it is larger than the sum of its proper divisors (71666383).

16000112561 is an equidigital number, since it uses as much as digits as its factorization.

16000112561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80391.

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 16000112561 in words is "sixteen billion, one hundred twelve thousand, five hundred sixty-one".