16071942979 has 4 divisors (see below), whose sum is σ = 16072233376. Its totient is φ = 16071652584.

The previous prime is 16071942977. The next prime is 16071943009. The reversal of 16071942979 is 97924917061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16071942979 - 2¹ = 16071942977 is a prime.

It is a super-2 number, since 2×16071942979² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16071942977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33579 + ... + 182404.

It is an arithmetic number, because the mean of its divisors is an integer number (4018058344).

Almost surely, 2^16071942979 is an apocalyptic number.

16071942979 is a deficient number, since it is larger than the sum of its proper divisors (290397).

16071942979 is an equidigital number, since it uses as much as digits as its factorization.

16071942979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290396.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The spelling of 16071942979 in words is "sixteen billion, seventy-one million, nine hundred forty-two thousand, nine hundred seventy-nine".