16351970806 has 4 divisors (see below), whose sum is σ = 24527956212. Its totient is φ = 8175985402.

The previous prime is 16351970797. The next prime is 16351970933. The reversal of 16351970806 is 60807915361.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4087992700 + ... + 4087992703.

It is an arithmetic number, because the mean of its divisors is an integer number (6131989053).

Almost surely, 2^16351970806 is an apocalyptic number.

16351970806 is a deficient number, since it is larger than the sum of its proper divisors (8175985406).

16351970806 is an equidigital number, since it uses as much as digits as its factorization.

16351970806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175985405.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 16351970806 in words is "sixteen billion, three hundred fifty-one million, nine hundred seventy thousand, eight hundred six".