16388466858297 has 20 divisors (see below), whose sum is σ = 24660234278196. Its totient is φ = 10845895334400.

The previous prime is 16388466858241. The next prime is 16388466858299. The reversal of 16388466858297 is 79285866488361.

16388466858297 is a `hidden beast` number, since 1 + 6 + 3 + 88 + 466 + 8 + 58 + 29 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5966778404601 + 10421688453696 = 2442699^2 + 3228264^2 .

It is not a de Polignac number, because 16388466858297 - 2³⁵ = 16354107119929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (16388466858299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 738407704 + ... + 738429897.

Almost surely, 2^{16388466858297} is an apocalyptic number.

It is an amenable number.

16388466858297 is a deficient number, since it is larger than the sum of its proper divisors (8271767419899).

16388466858297 is a wasteful number, since it uses less digits than its factorization.

16388466858297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476837750 (or 1476837741 counting only the distinct ones).

The product of its digits is 6688604160, while the sum is 81.

The spelling of 16388466858297 in words is "sixteen trillion, three hundred eighty-eight billion, four hundred sixty-six million, eight hundred fifty-eight thousand, two hundred ninety-seven".