2185813504600 has 96 divisors (see below), whose sum is σ = 5672948783040. Its totient is φ = 776356560000.

The previous prime is 2185813504597. The next prime is 2185813504603. The reversal of 2185813504600 is 64053185812.

It is an interprime number because it is at equal distance from previous prime (2185813504597) and next prime (2185813504603).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185813504603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11458326 + ... + 11647525.

It is an arithmetic number, because the mean of its divisors is an integer number (59093216490).

Almost surely, 2^{2185813504600} is an apocalyptic number.

2185813504600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2185813504600 is an abundant number, since it is smaller than the sum of its proper divisors (3487135278440).

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

2185813504600 is a wasteful number, since it uses less digits than its factorization.

2185813504600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23105921 (or 23105912 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 2185813504600 in words is "two trillion, one hundred eighty-five billion, eight hundred thirteen million, five hundred four thousand, six hundred".