223001661665140 has 96 divisors (see below), whose sum is σ = 473244710359680. Its totient is φ = 88263959648256.

The previous prime is 223001661665077. The next prime is 223001661665207. The reversal of 223001661665140 is 41566166100322.

It is a super-2 number, since 2×223001661665140² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1789204264 + ... + 1789328896.

It is an arithmetic number, because the mean of its divisors is an integer number (4929632399580).

Almost surely, 2^{223001661665140} is an apocalyptic number.

223001661665140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223001661665140 is an abundant number, since it is smaller than the sum of its proper divisors (250243048694540).

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

223001661665140 is a wasteful number, since it uses less digits than its factorization.

223001661665140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126881 (or 126879 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 223001661665140 in words is "two hundred twenty-three trillion, one billion, six hundred sixty-one million, six hundred sixty-five thousand, one hundred forty".