2635666561433 has 16 divisors (see below), whose sum is σ = 2786193288000. Its totient is φ = 2486330546112.

The previous prime is 2635666561277. The next prime is 2635666561469. The reversal of 2635666561433 is 3341656665362.

2635666561433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2635666561433 - 2¹⁸ = 2635666299289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2635666560433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9455978 + ... + 9730716.

It is an arithmetic number, because the mean of its divisors is an integer number (174137080500).

Almost surely, 2^{2635666561433} is an apocalyptic number.

It is an amenable number.

2635666561433 is a deficient number, since it is larger than the sum of its proper divisors (150526726567).

2635666561433 is a wasteful number, since it uses less digits than its factorization.

2635666561433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276904.

The product of its digits is 41990400, while the sum is 56.

The spelling of 2635666561433 in words is "two trillion, six hundred thirty-five billion, six hundred sixty-six million, five hundred sixty-one thousand, four hundred thirty-three".