616663800 has 96 divisors (see below), whose sum is σ = 2124082800. Its totient is φ = 164442240.

The previous prime is 616663799. The next prime is 616663841. The reversal of 616663800 is 8366616.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51699 + ... + 62498.

Almost surely, 2^616663800 is an apocalyptic number.

616663800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616663800 is an abundant number, since it is smaller than the sum of its proper divisors (1507419000).

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

616663800 is a wasteful number, since it uses less digits than its factorization.

616663800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114222 (or 114207 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 616663800 is about 24832.7163234311. The cubic root of 616663800 is about 851.1696929810.

The spelling of 616663800 in words is "six hundred sixteen million, six hundred sixty-three thousand, eight hundred".