380269681731666 has 80 divisors (see below), whose sum is σ = 862427861064000. Its totient is φ = 125218336633632.

The previous prime is 380269681731649. The next prime is 380269681731701. The reversal of 380269681731666 is 666137186962083.

It is a junction number, because it is equal to n+sod(n) for n = 380269681731594 and 380269681731603.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 152030440 + ... + 154511468.

It is an arithmetic number, because the mean of its divisors is an integer number (10780348263300).

Almost surely, 2^{380269681731666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380269681731666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431213930532000).

380269681731666 is an abundant number, since it is smaller than the sum of its proper divisors (482158179332334).

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

380269681731666 is a wasteful number, since it uses less digits than its factorization.

380269681731666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492525 (or 2492516 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 72.

The spelling of 380269681731666 in words is "three hundred eighty trillion, two hundred sixty-nine billion, six hundred eighty-one million, seven hundred thirty-one thousand, six hundred sixty-six".