7166426399 has 8 divisors (see below), whose sum is σ = 7858429392. Its totient is φ = 6481175040.

The previous prime is 7166426359. The next prime is 7166426419. The reversal of 7166426399 is 9936246617.

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 7166426399 - 2²⁰ = 7165377823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7166426399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166426359) 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, 1685684 + ... + 1689929.

It is an arithmetic number, because the mean of its divisors is an integer number (982303674).

Almost surely, 2^7166426399 is an apocalyptic number.

7166426399 is a deficient number, since it is larger than the sum of its proper divisors (692002993).

7166426399 is a wasteful number, since it uses less digits than its factorization.

7166426399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375817.

The product of its digits is 2939328, while the sum is 53.

The square root of 7166426399 is about 84654.7482365874. The cubic root of 7166426399 is about 1927.9727071794.

The spelling of 7166426399 in words is "seven billion, one hundred sixty-six million, four hundred twenty-six thousand, three hundred ninety-nine".