3661576244816 has 80 divisors (see below), whose sum is σ = 8371215541248. Its totient is φ = 1518281625600.

The previous prime is 3661576244801. The next prime is 3661576244849. The reversal of 3661576244816 is 6184426751663.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15482336 + ... + 15717056.

Almost surely, 2^{3661576244816} 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 3661576244816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4185607770624).

3661576244816 is an abundant number, since it is smaller than the sum of its proper divisors (4709639296432).

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

3661576244816 is a wasteful number, since it uses less digits than its factorization.

3661576244816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239260 (or 239254 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 3661576244816 in words is "three trillion, six hundred sixty-one billion, five hundred seventy-six million, two hundred forty-four thousand, eight hundred sixteen".