2126566652641 has 8 divisors (see below), whose sum is σ = 2148528291840. Its totient is φ = 2104605794688.

The previous prime is 2126566652557. The next prime is 2126566652699. The reversal of 2126566652641 is 1462566656212.

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

It is a cyclic number.

It is not a de Polignac number, because 2126566652641 - 2¹⁹ = 2126566128353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126566652741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6431520 + ... + 6754078.

It is an arithmetic number, because the mean of its divisors is an integer number (268566036480).

Almost surely, 2^{2126566652641} is an apocalyptic number.

It is an amenable number.

2126566652641 is a deficient number, since it is larger than the sum of its proper divisors (21961639199).

2126566652641 is an equidigital number, since it uses as much as digits as its factorization.

2126566652641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390623.

The product of its digits is 6220800, while the sum is 52.

The spelling of 2126566652641 in words is "two trillion, one hundred twenty-six billion, five hundred sixty-six million, six hundred fifty-two thousand, six hundred forty-one".