16623323351 has 16 divisors (see below), whose sum is σ = 17123383200. Its totient is φ = 16128046080.

The previous prime is 16623323287. The next prime is 16623323389. The reversal of 16623323351 is 15332332661.

It is a cyclic number.

It is not a de Polignac number, because 16623323351 - 2⁶ = 16623323287 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 (16623323251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6194456 + ... + 6197138.

It is an arithmetic number, because the mean of its divisors is an integer number (1070211450).

Almost surely, 2^16623323351 is an apocalyptic number.

16623323351 is a deficient number, since it is larger than the sum of its proper divisors (500059849).

16623323351 is a wasteful number, since it uses less digits than its factorization.

16623323351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506.

The product of its digits is 58320, while the sum is 35.

The spelling of 16623323351 in words is "sixteen billion, six hundred twenty-three million, three hundred twenty-three thousand, three hundred fifty-one".