2663661031012 has 24 divisors (see below), whose sum is σ = 4799329509240. Its totient is φ = 1292603558400.

The previous prime is 2663661031001. The next prime is 2663661031033. The reversal of 2663661031012 is 2101301663662.

It can be written as a sum of positive squares in 4 ways, for example, as 2349426790656 + 314234240356 = 1532784^2 + 560566^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22381687 + ... + 22500382.

It is an arithmetic number, because the mean of its divisors is an integer number (199972062885).

Almost surely, 2^{2663661031012} is an apocalyptic number.

It is an amenable number.

2663661031012 is a deficient number, since it is larger than the sum of its proper divisors (2135668478228).

2663661031012 is a wasteful number, since it uses less digits than its factorization.

2663661031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44882511 (or 44882509 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 2663661031012 its reverse (2101301663662), we get a palindrome (4764962694674).

The spelling of 2663661031012 in words is "two trillion, six hundred sixty-three billion, six hundred sixty-one million, thirty-one thousand, twelve".