2664161213012 has 12 divisors (see below), whose sum is σ = 5020919209236. Its totient is φ = 1229612867520.

The previous prime is 2664161212943. The next prime is 2664161213053. The reversal of 2664161213012 is 2103121614662.

It can be written as a sum of positive squares in 2 ways, for example, as 320824819396 + 2343336393616 = 566414^2 + 1530796^2 .

It is a super-2 number, since 2×2664161213012² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25616934689 + ... + 25616934792.

It is an arithmetic number, because the mean of its divisors is an integer number (418409934103).

Almost surely, 2^{2664161213012} is an apocalyptic number.

It is an amenable number.

2664161213012 is a deficient number, since it is larger than the sum of its proper divisors (2356757996224).

2664161213012 is a wasteful number, since it uses less digits than its factorization.

2664161213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51233869498 (or 51233869496 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

Adding to 2664161213012 its reverse (2103121614662), we get a palindrome (4767282827674).

The spelling of 2664161213012 in words is "two trillion, six hundred sixty-four billion, one hundred sixty-one million, two hundred thirteen thousand, twelve".