16661725620230 has 64 divisors (see below), whose sum is σ = 30436778211840. Its totient is φ = 6566391546624.

The previous prime is 16661725620229. The next prime is 16661725620247. The reversal of 16661725620230 is 3202652716661.

It is a super-2 number, since 2×16661725620230² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172918706 + ... + 173015034.

It is an arithmetic number, because the mean of its divisors is an integer number (475574659560).

Almost surely, 2^{16661725620230} is an apocalyptic number.

16661725620230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16661725620230 is a deficient number, since it is larger than the sum of its proper divisors (13775052591610).

16661725620230 is a wasteful number, since it uses less digits than its factorization.

16661725620230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97293.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 16661725620230 in words is "sixteen trillion, six hundred sixty-one billion, seven hundred twenty-five million, six hundred twenty thousand, two hundred thirty".