6166161405 has 24 divisors (see below), whose sum is σ = 10692433440. Its totient is φ = 3287259360.

The previous prime is 6166161329. The next prime is 6166161413. The reversal of 6166161405 is 5041616616.

It is a happy number.

It is not a de Polignac number, because 6166161405 - 2¹⁵ = 6166128637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6166161405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86826 + ... + 140964.

It is an arithmetic number, because the mean of its divisors is an integer number (445518060).

Almost surely, 2^6166161405 is an apocalyptic number.

It is an amenable number.

6166161405 is a deficient number, since it is larger than the sum of its proper divisors (4526272035).

6166161405 is a wasteful number, since it uses less digits than its factorization.

6166161405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56681 (or 56678 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 6166161405 is about 78524.9094555352. The cubic root of 6166161405 is about 1833.7422703382.

The spelling of 6166161405 in words is "six billion, one hundred sixty-six million, one hundred sixty-one thousand, four hundred five".