132161445266621 has 8 divisors (see below), whose sum is σ = 134030455937664. Its totient is φ = 130294017836640.

The previous prime is 132161445266579. The next prime is 132161445266647. The reversal of 132161445266621 is 126662544161231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132161445266621 is a prime.

It is a super-2 number, since 2×132161445266621² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132161445266621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132161445266321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395642135 + ... + 395976036.

It is an arithmetic number, because the mean of its divisors is an integer number (16753806992208).

Almost surely, 2^{132161445266621} is an apocalyptic number.

It is an amenable number.

132161445266621 is a deficient number, since it is larger than the sum of its proper divisors (1869010671043).

132161445266621 is an equidigital number, since it uses as much as digits as its factorization.

132161445266621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791620531.

The product of its digits is 2488320, while the sum is 50.

The spelling of 132161445266621 in words is "one hundred thirty-two trillion, one hundred sixty-one billion, four hundred forty-five million, two hundred sixty-six thousand, six hundred twenty-one".