540132156891 has 6 divisors (see below), whose sum is σ = 780190893300. Its totient is φ = 360088104588.

The previous prime is 540132156799. The next prime is 540132156947. The reversal of 540132156891 is 198651231045.

It is a happy number.

540132156891 is a `hidden beast` number, since 5 + 401 + 3 + 2 + 156 + 8 + 91 = 666.

It is not a de Polignac number, because 540132156891 - 2³⁵ = 505772418523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540132156691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30007342041 + ... + 30007342058.

It is an arithmetic number, because the mean of its divisors is an integer number (130031815550).

Almost surely, 2^540132156891 is an apocalyptic number.

540132156891 is a deficient number, since it is larger than the sum of its proper divisors (240058736409).

540132156891 is a wasteful number, since it uses less digits than its factorization.

540132156891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60014684105 (or 60014684102 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 540132156891 in words is "five hundred forty billion, one hundred thirty-two million, one hundred fifty-six thousand, eight hundred ninety-one".