2081355223630 has 32 divisors (see below), whose sum is σ = 3943698140160. Its totient is φ = 788708541600.

The previous prime is 2081355223613. The next prime is 2081355223639. The reversal of 2081355223630 is 363225531802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081355223639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15427527 + ... + 15561853.

It is an arithmetic number, because the mean of its divisors is an integer number (123240566880).

Almost surely, 2^{2081355223630} is an apocalyptic number.

2081355223630 is a deficient number, since it is larger than the sum of its proper divisors (1862342916530).

2081355223630 is a wasteful number, since it uses less digits than its factorization.

2081355223630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215904.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2081355223630 in words is "two trillion, eighty-one billion, three hundred fifty-five million, two hundred twenty-three thousand, six hundred thirty".