12620266703144 has 8 divisors (see below), whose sum is σ = 23663000068410. Its totient is φ = 6310133351568.

The previous prime is 12620266703129. The next prime is 12620266703147. The reversal of 12620266703144 is 44130766202621.

It can be written as a sum of positive squares in only one way, i.e., 12562984024900 + 57282678244 = 3544430^2 + 239338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12620266703144² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12620266703095 and 12620266703104.

It is not an unprimeable number, because it can be changed into a prime (12620266703147) by changing a digit.

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 as a sum of consecutive naturals, namely, 788766668939 + ... + 788766668954.

Almost surely, 2^{12620266703144} is an apocalyptic number.

It is an amenable number.

12620266703144 is a deficient number, since it is larger than the sum of its proper divisors (11042733365266).

12620266703144 is a wasteful number, since it uses less digits than its factorization.

12620266703144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577533337899 (or 1577533337895 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 12620266703144 in words is "twelve trillion, six hundred twenty billion, two hundred sixty-six million, seven hundred three thousand, one hundred forty-four".