3666390013584 has 60 divisors (see below), whose sum is σ = 10261095445900. Its totient is φ = 1222094794752.

The previous prime is 3666390013571. The next prime is 3666390013589. The reversal of 3666390013584 is 4853100936663.

It can be written as a sum of positive squares in 2 ways, for example, as 3089762403984 + 576627609600 = 1757772^2 + 759360^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3666390013584.

It is not an unprimeable number, because it can be changed into a prime (3666390013589) 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, 4911672 + ... + 5608680.

Almost surely, 2^{3666390013584} is an apocalyptic number.

It is an amenable number.

3666390013584 is an abundant number, since it is smaller than the sum of its proper divisors (6594705432316).

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

3666390013584 is a wasteful number, since it uses less digits than its factorization.

3666390013584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733552 (or 733543 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 3666390013584 in words is "three trillion, six hundred sixty-six billion, three hundred ninety million, thirteen thousand, five hundred eighty-four".