1115555540520 has 64 divisors (see below), whose sum is σ = 3428292651840. Its totient is φ = 290225830400.

The previous prime is 1115555540483. The next prime is 1115555540527. The reversal of 1115555540520 is 250455555111.

It is not an unprimeable number, because it can be changed into a prime (1115555540527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113364546 + ... + 113374385.

It is an arithmetic number, because the mean of its divisors is an integer number (53567072685).

Almost surely, 2^{1115555540520} is an apocalyptic number.

1115555540520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115555540520 is an abundant number, since it is smaller than the sum of its proper divisors (2312737111320).

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

1115555540520 is a wasteful number, since it uses less digits than its factorization.

1115555540520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226738986 (or 226738982 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 39.

The spelling of 1115555540520 in words is "one trillion, one hundred fifteen billion, five hundred fifty-five million, five hundred forty thousand, five hundred twenty".