16073665397 has 4 divisors (see below), whose sum is σ = 16073966400. Its totient is φ = 16073364396.

The previous prime is 16073665369. The next prime is 16073665403. The reversal of 16073665397 is 79356637061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16073665397 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 (16073665337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46397 + ... + 185202.

It is an arithmetic number, because the mean of its divisors is an integer number (4018491600).

Almost surely, 2^16073665397 is an apocalyptic number.

It is an amenable number.

16073665397 is a deficient number, since it is larger than the sum of its proper divisors (301003).

16073665397 is an equidigital number, since it uses as much as digits as its factorization.

16073665397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301002.

The product of its (nonzero) digits is 4286520, while the sum is 53.

The spelling of 16073665397 in words is "sixteen billion, seventy-three million, six hundred sixty-five thousand, three hundred ninety-seven".