1164255155800 has 96 divisors (see below), whose sum is σ = 3126678919920. Its totient is φ = 398461644800.

The previous prime is 1164255155773. The next prime is 1164255155803. The reversal of 1164255155800 is 85515524611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164255155803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15527509 + ... + 15602308.

Almost surely, 2^{1164255155800} is an apocalyptic number.

1164255155800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164255155800 is an abundant number, since it is smaller than the sum of its proper divisors (1962423764120).

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

1164255155800 is a wasteful number, since it uses less digits than its factorization.

1164255155800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31129861 (or 31129852 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 43.

The spelling of 1164255155800 in words is "one trillion, one hundred sixty-four billion, two hundred fifty-five million, one hundred fifty-five thousand, eight hundred".