1171371472540 has 24 divisors (see below), whose sum is σ = 2459903226480. Its totient is φ = 468544182528.

The previous prime is 1171371472529. The next prime is 1171371472559. The reversal of 1171371472540 is 452741731711.

It is a super-2 number, since 2×1171371472540² (a number of 25 digits) contains 22 as substring.

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, 2675631 + ... + 3082489.

It is an arithmetic number, because the mean of its divisors is an integer number (102495967770).

Almost surely, 2^{1171371472540} is an apocalyptic number.

1171371472540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171371472540 is an abundant number, since it is smaller than the sum of its proper divisors (1288531753940).

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

1171371472540 is a wasteful number, since it uses less digits than its factorization.

1171371472540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550821 (or 550819 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 1171371472540 in words is "one trillion, one hundred seventy-one billion, three hundred seventy-one million, four hundred seventy-two thousand, five hundred forty".