166415635324011 has 4 divisors (see below), whose sum is σ = 221887513765352. Its totient is φ = 110943756882672.

The previous prime is 166415635323953. The next prime is 166415635324013. The reversal of 166415635324011 is 110423536514661.

166415635324011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 166415635324011 - 2¹⁴ = 166415635307627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166415635324013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27735939220666 + ... + 27735939220671.

It is an arithmetic number, because the mean of its divisors is an integer number (55471878441338).

Almost surely, 2^{166415635324011} is an apocalyptic number.

166415635324011 is a deficient number, since it is larger than the sum of its proper divisors (55471878441341).

166415635324011 is an equidigital number, since it uses as much as digits as its factorization.

166415635324011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55471878441340.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 166415635324011 in words is "one hundred sixty-six trillion, four hundred fifteen billion, six hundred thirty-five million, three hundred twenty-four thousand, eleven".