6161586408 has 80 divisors (see below), whose sum is σ = 17372715360. Its totient is φ = 2040228000.

The previous prime is 6161586383. The next prime is 6161586427. The reversal of 6161586408 is 8046851616.

6161586408 is a `hidden beast` number, since 6 + 1 + 61 + 586 + 4 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66363 + ... + 129333.

It is an arithmetic number, because the mean of its divisors is an integer number (217158942).

Almost surely, 2^6161586408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161586408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8686357680).

6161586408 is an abundant number, since it is smaller than the sum of its proper divisors (11211128952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6161586408 is a wasteful number, since it uses less digits than its factorization.

6161586408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63140 (or 63127 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 6161586408 is about 78495.7731855671. The cubic root of 6161586408 is about 1833.2886417609.

The spelling of 6161586408 in words is "six billion, one hundred sixty-one million, five hundred eighty-six thousand, four hundred eight".