2665126420626 has 16 divisors (see below), whose sum is σ = 5409808854624. Its totient is φ = 875116137984.

The previous prime is 2665126420591. The next prime is 2665126420633. The reversal of 2665126420626 is 6260246215662.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3314833455 + ... + 3314834258.

It is an arithmetic number, because the mean of its divisors is an integer number (338113053414).

Almost surely, 2^{2665126420626} is an apocalyptic number.

2665126420626 is an abundant number, since it is smaller than the sum of its proper divisors (2744682433998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665126420626 is a wasteful number, since it uses less digits than its factorization.

2665126420626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629667785.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 2665126420626 in words is "two trillion, six hundred sixty-five billion, one hundred twenty-six million, four hundred twenty thousand, six hundred twenty-six".