16345571407 has 24 divisors (see below), whose sum is σ = 18850487936. Its totient is φ = 14144328000.

The previous prime is 16345571399. The next prime is 16345571413. The reversal of 16345571407 is 70417554361.

16345571407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16345571407 - 2³ = 16345571399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345574407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193093 + ... + 264529.

Almost surely, 2^16345571407 is an apocalyptic number.

16345571407 is a deficient number, since it is larger than the sum of its proper divisors (2504916529).

16345571407 is a wasteful number, since it uses less digits than its factorization.

16345571407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71551 (or 71540 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 16345571407 in words is "sixteen billion, three hundred forty-five million, five hundred seventy-one thousand, four hundred seven".