6166363421 has 4 divisors (see below), whose sum is σ = 6170361312. Its totient is φ = 6162365532.

The previous prime is 6166363397. The next prime is 6166363433. The reversal of 6166363421 is 1243636616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6166363421 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 (6166363451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996631 + ... + 1999716.

It is an arithmetic number, because the mean of its divisors is an integer number (1542590328).

Almost surely, 2^6166363421 is an apocalyptic number.

It is an amenable number.

6166363421 is a deficient number, since it is larger than the sum of its proper divisors (3997891).

6166363421 is a wasteful number, since it uses less digits than its factorization.

6166363421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997890.

The product of its digits is 93312, while the sum is 38.

The square root of 6166363421 is about 78526.1957629427. The cubic root of 6166363421 is about 1833.7622958294.

The spelling of 6166363421 in words is "six billion, one hundred sixty-six million, three hundred sixty-three thousand, four hundred twenty-one".