2166132344061 has 16 divisors (see below), whose sum is σ = 3302789503104. Its totient is φ = 1237033758144.

The previous prime is 2166132344039. The next prime is 2166132344087. The reversal of 2166132344061 is 1604432316612.

It is not a de Polignac number, because 2166132344061 - 2⁵ = 2166132344029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166132344261) 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 15 ways as a sum of consecutive naturals, for example, 31471170 + ... + 31539923.

It is an arithmetic number, because the mean of its divisors is an integer number (206424343944).

Almost surely, 2^{2166132344061} is an apocalyptic number.

2166132344061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2166132344061 is a deficient number, since it is larger than the sum of its proper divisors (1136657159043).

2166132344061 is a wasteful number, since it uses less digits than its factorization.

2166132344061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63012740.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 2166132344061 in words is "two trillion, one hundred sixty-six billion, one hundred thirty-two million, three hundred forty-four thousand, sixty-one".