2663646520612 has 96 divisors (see below), whose sum is σ = 5872584001536. Its totient is φ = 1026915110400.

The previous prime is 2663646520597. The next prime is 2663646520631. The reversal of 2663646520612 is 2160256463662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29186412 + ... + 29277532.

It is an arithmetic number, because the mean of its divisors is an integer number (61172750016).

Almost surely, 2^{2663646520612} is an apocalyptic number.

2663646520612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2663646520612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2936292000768).

2663646520612 is an abundant number, since it is smaller than the sum of its proper divisors (3208937480924).

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

2663646520612 is a wasteful number, since it uses less digits than its factorization.

2663646520612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92137 (or 92135 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 2663646520612 in words is "two trillion, six hundred sixty-three billion, six hundred forty-six million, five hundred twenty thousand, six hundred twelve".