16397630897 has 8 divisors (see below), whose sum is σ = 16818319392. Its totient is φ = 15977930400.

The previous prime is 16397630849. The next prime is 16397630903. The reversal of 16397630897 is 79803679361.

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 16397630897 - 2¹⁸ = 16397368753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16397636897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213323 + ... + 279824.

It is an arithmetic number, because the mean of its divisors is an integer number (2102289924).

Almost surely, 2^16397630897 is an apocalyptic number.

It is an amenable number.

16397630897 is a deficient number, since it is larger than the sum of its proper divisors (420688495).

16397630897 is an equidigital number, since it uses as much as digits as its factorization.

16397630897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493999.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 16397630897 in words is "sixteen billion, three hundred ninety-seven million, six hundred thirty thousand, eight hundred ninety-seven".