3807386841666 has 64 divisors (see below), whose sum is σ = 7676160662016. Its totient is φ = 1258940620800.

The previous prime is 3807386841619. The next prime is 3807386841689. The reversal of 3807386841666 is 6661486837083.

It is a junction number, because it is equal to n+sod(n) for n = 3807386841597 and 3807386841606.

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, 771191950 + ... + 771196886.

It is an arithmetic number, because the mean of its divisors is an integer number (119940010344).

Almost surely, 2^{3807386841666} is an apocalyptic number.

3807386841666 is an abundant number, since it is smaller than the sum of its proper divisors (3868773820350).

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

3807386841666 is a wasteful number, since it uses less digits than its factorization.

3807386841666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 167215104, while the sum is 66.

The spelling of 3807386841666 in words is "three trillion, eight hundred seven billion, three hundred eighty-six million, eight hundred forty-one thousand, six hundred sixty-six".