16696278379 has 16 divisors (see below), whose sum is σ = 18726787296. Its totient is φ = 14752108800.

The previous prime is 16696278343. The next prime is 16696278383. The reversal of 16696278379 is 97387269661.

It is a happy number.

It is not a de Polignac number, because 16696278379 - 2¹³ = 16696270187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16696278379.

It is not an unprimeable number, because it can be changed into a prime (16696278479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359469 + ... + 403249.

It is an arithmetic number, because the mean of its divisors is an integer number (1170424206).

Almost surely, 2^16696278379 is an apocalyptic number.

16696278379 is a deficient number, since it is larger than the sum of its proper divisors (2030508917).

16696278379 is a wasteful number, since it uses less digits than its factorization.

16696278379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44766.

The product of its digits is 41150592, while the sum is 64.

The spelling of 16696278379 in words is "sixteen billion, six hundred ninety-six million, two hundred seventy-eight thousand, three hundred seventy-nine".