5999961600 has 420 divisors, whose sum is σ = 22322526996. Its totient is φ = 1597501440.

The previous prime is 5999961581. The next prime is 5999961601. The reversal of 5999961600 is 61699995.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5999961601) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 9330879 + ... + 9331521.

Almost surely, 2^5999961600 is an apocalyptic number.

5999961600 is a gapful number since it is divisible by the number (50) 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 5999961600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11161263498).

5999961600 is an abundant number, since it is smaller than the sum of its proper divisors (16322565396).

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

5999961600 is an frugal number, since it uses more digits than its factorization.

5999961600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 54.

The square root of 5999961600 is about 77459.4190528176. The cubic root of 5999961600 is about 1817.1167162999.

The spelling of 5999961600 in words is "five billion, nine hundred ninety-nine million, nine hundred sixty-one thousand, six hundred".