1155315214540 has 24 divisors (see below), whose sum is σ = 2426221163520. Its totient is φ = 462114807168.

The previous prime is 1155315214531. The next prime is 1155315214567. The reversal of 1155315214540 is 454125135511.

It is a self number, because there is not a number n which added to its sum of digits gives 1155315214540.

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, 160984 + ... + 1528576.

It is an arithmetic number, because the mean of its divisors is an integer number (101092548480).

Almost surely, 2^{1155315214540} is an apocalyptic number.

1155315214540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155315214540 is an abundant number, since it is smaller than the sum of its proper divisors (1270905948980).

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

1155315214540 is a wasteful number, since it uses less digits than its factorization.

1155315214540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409841 (or 1409839 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 1155315214540 in words is "one trillion, one hundred fifty-five billion, three hundred fifteen million, two hundred fourteen thousand, five hundred forty".