6325661405 has 8 divisors (see below), whose sum is σ = 8675192832. Its totient is φ = 4337596368.

The previous prime is 6325661401. The next prime is 6325661437. The reversal of 6325661405 is 5041665236.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6325661405 - 2² = 6325661401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6325661401) 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, 90366557 + ... + 90366626.

It is an arithmetic number, because the mean of its divisors is an integer number (1084399104).

Almost surely, 2^6325661405 is an apocalyptic number.

It is an amenable number.

6325661405 is a deficient number, since it is larger than the sum of its proper divisors (2349531427).

6325661405 is a wasteful number, since it uses less digits than its factorization.

6325661405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180733195.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 6325661405 is about 79534.0267118420. The cubic root of 6325661405 is about 1849.4189950524.

The spelling of 6325661405 in words is "six billion, three hundred twenty-five million, six hundred sixty-one thousand, four hundred five".