6216166493 has 8 divisors (see below), whose sum is σ = 6294038400. Its totient is φ = 6138631728.

The previous prime is 6216166487. The next prime is 6216166513. The reversal of 6216166493 is 3946616126.

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 6216166493 - 2²² = 6211972189 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 (6216166423) 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, 47078 + ... + 121031.

It is an arithmetic number, because the mean of its divisors is an integer number (786754800).

Almost surely, 2^6216166493 is an apocalyptic number.

It is an amenable number.

6216166493 is a deficient number, since it is larger than the sum of its proper divisors (77871907).

6216166493 is a wasteful number, since it uses less digits than its factorization.

6216166493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168571.

The product of its digits is 279936, while the sum is 44.

The square root of 6216166493 is about 78842.6692407100. The cubic root of 6216166493 is about 1838.6859013694.

The spelling of 6216166493 in words is "six billion, two hundred sixteen million, one hundred sixty-six thousand, four hundred ninety-three".