2166434402435 has 16 divisors (see below), whose sum is σ = 2640573359424. Its totient is φ = 1706007209472.

The previous prime is 2166434402423. The next prime is 2166434402441. The reversal of 2166434402435 is 5342044346612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2166434402435 - 2⁸ = 2166434402179 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 5716442 + ... + 6083631.

It is an arithmetic number, because the mean of its divisors is an integer number (165035834964).

Almost surely, 2^{2166434402435} is an apocalyptic number.

2166434402435 is a deficient number, since it is larger than the sum of its proper divisors (474138956989).

2166434402435 is a wasteful number, since it uses less digits than its factorization.

2166434402435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800654.

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 2166434402435 in words is "two trillion, one hundred sixty-six billion, four hundred thirty-four million, four hundred two thousand, four hundred thirty-five".