373666205717 has 12 divisors (see below), whose sum is σ = 446420852460. Its totient is φ = 311628957696.

The previous prime is 373666205699. The next prime is 373666205743. The reversal of 373666205717 is 717502666373.

It can be written as a sum of positive squares in 2 ways, for example, as 236559667876 + 137106537841 = 486374^2 + 370279^2 .

It is not a de Polignac number, because 373666205717 - 2²² = 373662011413 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373666205767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103050092 + ... + 103053717.

It is an arithmetic number, because the mean of its divisors is an integer number (37201737705).

Almost surely, 2^373666205717 is an apocalyptic number.

373666205717 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

373666205717 is a deficient number, since it is larger than the sum of its proper divisors (72754646743).

373666205717 is a wasteful number, since it uses less digits than its factorization.

373666205717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206103860 (or 206103853 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 53.

The spelling of 373666205717 in words is "three hundred seventy-three billion, six hundred sixty-six million, two hundred five thousand, seven hundred seventeen".