1656106116013 has 4 divisors (see below), whose sum is σ = 1656133354300. Its totient is φ = 1656078877728.

The previous prime is 1656106116011. The next prime is 1656106116017. The reversal of 1656106116013 is 3106116016561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 557093553769 + 1099012562244 = 746387^2 + 1048338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1656106116013 - 2¹ = 1656106116011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656106116011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13527738 + ... + 13649611.

It is an arithmetic number, because the mean of its divisors is an integer number (414033338575).

Almost surely, 2^{1656106116013} is an apocalyptic number.

It is an amenable number.

1656106116013 is a deficient number, since it is larger than the sum of its proper divisors (27238287).

1656106116013 is an equidigital number, since it uses as much as digits as its factorization.

1656106116013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27238286.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 1656106116013 in words is "one trillion, six hundred fifty-six billion, one hundred six million, one hundred sixteen thousand, thirteen".