16623946432279 has 8 divisors (see below), whose sum is σ = 16645209926688. Its totient is φ = 16602683955360.

The previous prime is 16623946432271. The next prime is 16623946432319. The reversal of 16623946432279 is 97223464932661.

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 16623946432279 - 2³ = 16623946432271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16623946432279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16623946432271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35682174 + ... + 36145060.

It is an arithmetic number, because the mean of its divisors is an integer number (2080651240836).

Almost surely, 2^{16623946432279} is an apocalyptic number.

16623946432279 is a deficient number, since it is larger than the sum of its proper divisors (21263494409).

16623946432279 is an equidigital number, since it uses as much as digits as its factorization.

16623946432279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508745.

The product of its digits is 141087744, while the sum is 64.

The spelling of 16623946432279 in words is "sixteen trillion, six hundred twenty-three billion, nine hundred forty-six million, four hundred thirty-two thousand, two hundred seventy-nine".