132156106216261 has 2 divisors, whose sum is σ = 132156106216262. Its totient is φ = 132156106216260.

The previous prime is 132156106216249. The next prime is 132156106216289. The reversal of 132156106216261 is 162612601651231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82487355885025 + 49668750331236 = 9082255^2 + 7047606^2 .

It is a cyclic number.

It is not a de Polignac number, because 132156106216261 - 2⁵ = 132156106216229 is a prime.

It is a super-2 number, since 2×132156106216261² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132156106216291) 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 as a sum of consecutive naturals, namely, 66078053108130 + 66078053108131.

It is an arithmetic number, because the mean of its divisors is an integer number (66078053108131).

Almost surely, 2^{132156106216261} is an apocalyptic number.

It is an amenable number.

132156106216261 is a deficient number, since it is larger than the sum of its proper divisors (1).

132156106216261 is an equidigital number, since it uses as much as digits as its factorization.

132156106216261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

Adding to 132156106216261 its reverse (162612601651231), we get a palindrome (294768707867492).

The spelling of 132156106216261 in words is "one hundred thirty-two trillion, one hundred fifty-six billion, one hundred six million, two hundred sixteen thousand, two hundred sixty-one".