1115165500 has 24 divisors (see below), whose sum is σ = 2435522544. Its totient is φ = 446066000.

The previous prime is 1115165497. The next prime is 1115165503. The reversal of 1115165500 is 55615111.

It is an interprime number because it is at equal distance from previous prime (1115165497) and next prime (1115165503).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115165503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114666 + ... + 1115665.

It is an arithmetic number, because the mean of its divisors is an integer number (101480106).

Almost surely, 2^1115165500 is an apocalyptic number.

1115165500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115165500 is an abundant number, since it is smaller than the sum of its proper divisors (1320357044).

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

1115165500 is a wasteful number, since it uses less digits than its factorization.

1115165500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230350 (or 2230338 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 1115165500 is about 33394.0937891718. The cubic root of 1115165500 is about 1037.0024323377.

The spelling of 1115165500 in words is "one billion, one hundred fifteen million, one hundred sixty-five thousand, five hundred".