3666372736664 has 96 divisors (see below), whose sum is σ = 7822742994000. Its totient is φ = 1597059959040.

The previous prime is 3666372736657. The next prime is 3666372736681. The reversal of 3666372736664 is 4666372736663.

It is a self number, because there is not a number n which added to its sum of digits gives 3666372736664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8411162 + ... + 8836310.

Almost surely, 2^{3666372736664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666372736664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3911371497000).

3666372736664 is an abundant number, since it is smaller than the sum of its proper divisors (4156370257336).

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

3666372736664 is a wasteful number, since it uses less digits than its factorization.

3666372736664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425305 (or 425258 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 65.

Subtracting 3666372736664 from its reverse (4666372736663), we obtain a palindrome (999999999999).

The spelling of 3666372736664 in words is "three trillion, six hundred sixty-six billion, three hundred seventy-two million, seven hundred thirty-six thousand, six hundred sixty-four".