18601861552230 has 32 divisors (see below), whose sum is σ = 48703055701248. Its totient is φ = 4509542194400.

The previous prime is 18601861552217. The next prime is 18601861552237. The reversal of 18601861552230 is 3225516810681.

It is a self number, because there is not a number n which added to its sum of digits gives 18601861552230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18601861552237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28184638386 + ... + 28184639045.

It is an arithmetic number, because the mean of its divisors is an integer number (1521970490664).

Almost surely, 2^{18601861552230} is an apocalyptic number.

18601861552230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18601861552230 is an abundant number, since it is smaller than the sum of its proper divisors (30101194149018).

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

18601861552230 is a wasteful number, since it uses less digits than its factorization.

18601861552230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56369277452.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 18601861552230 in words is "eighteen trillion, six hundred one billion, eight hundred sixty-one million, five hundred fifty-two thousand, two hundred thirty".