353701683666 has 16 divisors (see below), whose sum is σ = 786003741600. Its totient is φ = 117900561204.

The previous prime is 353701683623. The next prime is 353701683683. The reversal of 353701683666 is 666386107353.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 6550031179 = 353701683666 / (3 + 5 + 3 + 7 + 0 + 1 + 6 + 8 + 3 + 6 + 6 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3275015536 + ... + 3275015643.

It is an arithmetic number, because the mean of its divisors is an integer number (49125233850).

Almost surely, 2^353701683666 is an apocalyptic number.

353701683666 is an abundant number, since it is smaller than the sum of its proper divisors (432302057934).

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

353701683666 is a wasteful number, since it uses less digits than its factorization.

353701683666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550031190 (or 6550031184 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 353701683666 in words is "three hundred fifty-three billion, seven hundred one million, six hundred eighty-three thousand, six hundred sixty-six".