8450661600 has 432 divisors, whose sum is σ = 30710534400. Its totient is φ = 2185896960.

The previous prime is 8450661547. The next prime is 8450661607. The reversal of 8450661600 is 61660548.

8450661600 is a `hidden beast` number, since 8 + 45 + 0 + 6 + 6 + 1 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8450661607) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47210311 + ... + 47210489.

It is an arithmetic number, because the mean of its divisors is an integer number (71089200).

Almost surely, 2^8450661600 is an apocalyptic number.

8450661600 is a gapful number since it is divisible by the number (80) 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 8450661600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15355267200).

8450661600 is an abundant number, since it is smaller than the sum of its proper divisors (22259872800).

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

8450661600 is a wasteful number, since it uses less digits than its factorization.

8450661600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 8450661600 is about 91927.4801134024. The cubic root of 8450661600 is about 2036.8712130001.

The spelling of 8450661600 in words is "eight billion, four hundred fifty million, six hundred sixty-one thousand, six hundred".