2126656566212 has 24 divisors (see below), whose sum is σ = 3752491654296. Its totient is φ = 1054550585088.

The previous prime is 2126656566127. The next prime is 2126656566277.

2126656566212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 86604249796 + 2040052316416 = 294286^2 + 1428304^2 .

It is a super-3 number, since 3×2126656566212³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 4064543 + ... + 4557830.

It is an arithmetic number, because the mean of its divisors is an integer number (156353818929).

Almost surely, 2^{2126656566212} is an apocalyptic number.

It is an amenable number.

2126656566212 is a deficient number, since it is larger than the sum of its proper divisors (1625835088084).

2126656566212 is a wasteful number, since it uses less digits than its factorization.

2126656566212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8622887 (or 8622885 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

The spelling of 2126656566212 in words is "two trillion, one hundred twenty-six billion, six hundred fifty-six million, five hundred sixty-six thousand, two hundred twelve".