6161373648 has 160 divisors (see below), whose sum is σ = 18797011200. Its totient is φ = 1932314112.

The previous prime is 6161373641. The next prime is 6161373661. The reversal of 6161373648 is 8463731616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161373641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2120965 + ... + 2123867.

It is an arithmetic number, because the mean of its divisors is an integer number (117481320).

Almost surely, 2^6161373648 is an apocalyptic number.

6161373648 is a gapful number since it is divisible by the number (68) 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 6161373648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9398505600).

6161373648 is an abundant number, since it is smaller than the sum of its proper divisors (12635637552).

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

6161373648 is a wasteful number, since it uses less digits than its factorization.

6161373648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2925 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 6161373648 is about 78494.4179416600. The cubic root of 6161373648 is about 1833.2675403239.

The spelling of 6161373648 in words is "six billion, one hundred sixty-one million, three hundred seventy-three thousand, six hundred forty-eight".