1181241172560 has 40 divisors (see below), whose sum is σ = 3661847635680. Its totient is φ = 314997645952.

The previous prime is 1181241172547. The next prime is 1181241172577. The reversal of 1181241172560 is 652711421811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2460918870 + ... + 2460919349.

It is an arithmetic number, because the mean of its divisors is an integer number (91546190892).

Almost surely, 2^{1181241172560} is an apocalyptic number.

1181241172560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1181241172560 is an abundant number, since it is smaller than the sum of its proper divisors (2480606463120).

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

1181241172560 is a wasteful number, since it uses less digits than its factorization.

1181241172560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921838235 (or 4921838229 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 1181241172560 in words is "one trillion, one hundred eighty-one billion, two hundred forty-one million, one hundred seventy-two thousand, five hundred sixty".