132156261636545 has 4 divisors (see below), whose sum is σ = 158587513963860. Its totient is φ = 105725009309232.

The previous prime is 132156261636541. The next prime is 132156261636611. The reversal of 132156261636545 is 545636162651231.

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 82113102010384 + 50043159626161 = 9061628^2 + 7074119^2 .

It is a cyclic number.

It is not a de Polignac number, because 132156261636545 - 2² = 132156261636541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132156261636541) 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, 13215626163650 + ... + 13215626163659.

It is an arithmetic number, because the mean of its divisors is an integer number (39646878490965).

Almost surely, 2^{132156261636545} is an apocalyptic number.

It is an amenable number.

132156261636545 is a deficient number, since it is larger than the sum of its proper divisors (26431252327315).

132156261636545 is an equidigital number, since it uses as much as digits as its factorization.

132156261636545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26431252327314.

The product of its digits is 23328000, while the sum is 56.

The spelling of 132156261636545 in words is "one hundred thirty-two trillion, one hundred fifty-six billion, two hundred sixty-one million, six hundred thirty-six thousand, five hundred forty-five".