6165963648 has 672 divisors, whose sum is σ = 22034093040. Its totient is φ = 1707982848.

The previous prime is 6165963641. The next prime is 6165963653. The reversal of 6165963648 is 8463695616.

6165963648 is a `hidden beast` number, since 6 + 1 + 6 + 596 + 3 + 6 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 6165963594 and 6165963603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6165963641) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 268085365 + ... + 268085387.

Almost surely, 2^6165963648 is an apocalyptic number.

6165963648 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 6165963648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11017046520).

6165963648 is an abundant number, since it is smaller than the sum of its proper divisors (15868129392).

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

6165963648 is a wasteful number, since it uses less digits than its factorization.

6165963648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 58 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 6165963648 is about 78523.6502462793. The cubic root of 6165963648 is about 1833.7226666105.

The spelling of 6165963648 in words is "six billion, one hundred sixty-five million, nine hundred sixty-three thousand, six hundred forty-eight".