16121042479 has 8 divisors (see below), whose sum is σ = 16159017680. Its totient is φ = 16083095616.

The previous prime is 16121042471. The next prime is 16121042573. The reversal of 16121042479 is 97424012161.

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 16121042479 - 2³ = 16121042471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121042471) 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, 1488817 + ... + 1499605.

It is an arithmetic number, because the mean of its divisors is an integer number (2019877210).

Almost surely, 2^16121042479 is an apocalyptic number.

16121042479 is a deficient number, since it is larger than the sum of its proper divisors (37975201).

16121042479 is a wasteful number, since it uses less digits than its factorization.

16121042479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14169.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 16121042479 in words is "sixteen billion, one hundred twenty-one million, forty-two thousand, four hundred seventy-nine".