6161944860 has 96 divisors (see below), whose sum is σ = 19193690880. Its totient is φ = 1641197376.

The previous prime is 6161944807. The next prime is 6161944871. The reversal of 6161944860 is 684491616.

6161944860 is a `hidden beast` number, since 6 + 161 + 9 + 4 + 486 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470359 + ... + 483281.

It is an arithmetic number, because the mean of its divisors is an integer number (199934280).

Almost surely, 2^6161944860 is an apocalyptic number.

6161944860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161944860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9596845440).

6161944860 is an abundant number, since it is smaller than the sum of its proper divisors (13031746020).

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

6161944860 is a wasteful number, since it uses less digits than its factorization.

6161944860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824 (or 13816 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 6161944860 is about 78498.0564090602. The cubic root of 6161944860 is about 1833.3241917634.

The spelling of 6161944860 in words is "six billion, one hundred sixty-one million, nine hundred forty-four thousand, eight hundred sixty".