16696246378 has 12 divisors (see below), whose sum is σ = 29133246402. Its totient is φ = 7155534120.

The previous prime is 16696246373. The next prime is 16696246381. The reversal of 16696246378 is 87364269661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16695999369 + 247009 = 129213^2 + 497^2 .

It is a super-2 number, since 2×16696246378² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16696246373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85184833 + ... + 85185028.

Almost surely, 2^16696246378 is an apocalyptic number.

16696246378 is a deficient number, since it is larger than the sum of its proper divisors (12437000024).

16696246378 is a wasteful number, since it uses less digits than its factorization.

16696246378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170369877 (or 170369870 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The spelling of 16696246378 in words is "sixteen billion, six hundred ninety-six million, two hundred forty-six thousand, three hundred seventy-eight".