2126566652642 has 8 divisors (see below), whose sum is σ = 3189859261932. Its totient is φ = 1063280232000.

The previous prime is 2126566652557. The next prime is 2126566652699. The reversal of 2126566652642 is 2462566656212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1800344049361 + 326222603281 = 1341769^2 + 571159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 562859 + ... + 2137742.

Almost surely, 2^{2126566652642} is an apocalyptic number.

2126566652642 is a deficient number, since it is larger than the sum of its proper divisors (1063292609290).

2126566652642 is a wasteful number, since it uses less digits than its factorization.

2126566652642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094324.

The product of its digits is 12441600, while the sum is 53.

The spelling of 2126566652642 in words is "two trillion, one hundred twenty-six billion, five hundred sixty-six million, six hundred fifty-two thousand, six hundred forty-two".