1155132440772 has 12 divisors (see below), whose sum is σ = 2695309028496. Its totient is φ = 385044146920.

The previous prime is 1155132440767. The next prime is 1155132440773. The reversal of 1155132440772 is 2770442315511.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1155132440773) 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, 48130518354 + ... + 48130518377.

It is an arithmetic number, because the mean of its divisors is an integer number (224609085708).

Almost surely, 2^{1155132440772} is an apocalyptic number.

1155132440772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155132440772 is an abundant number, since it is smaller than the sum of its proper divisors (1540176587724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155132440772 is a wasteful number, since it uses less digits than its factorization.

1155132440772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96261036738 (or 96261036736 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 1155132440772 in words is "one trillion, one hundred fifty-five billion, one hundred thirty-two million, four hundred forty thousand, seven hundred seventy-two".