132540156661 has 16 divisors (see below), whose sum is σ = 158816586240. Its totient is φ = 109186395120.

The previous prime is 132540156587. The next prime is 132540156677. The reversal of 132540156661 is 166651045231.

It is a happy number.

It is not a de Polignac number, because 132540156661 - 2⁷ = 132540156533 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 (132540156361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13781355 + ... + 13790968.

It is an arithmetic number, because the mean of its divisors is an integer number (9926036640).

Almost surely, 2^132540156661 is an apocalyptic number.

132540156661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

132540156661 is a deficient number, since it is larger than the sum of its proper divisors (26276429579).

132540156661 is a wasteful number, since it uses less digits than its factorization.

132540156661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27572376.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 132540156661 in words is "one hundred thirty-two billion, five hundred forty million, one hundred fifty-six thousand, six hundred sixty-one".