1155838707732 has 48 divisors (see below), whose sum is σ = 2747092228160. Its totient is φ = 378158913792.

The previous prime is 1155838707677. The next prime is 1155838707761. The reversal of 1155838707732 is 2377078385511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2372257 + ... + 2817672.

Almost surely, 2^{1155838707732} is an apocalyptic number.

1155838707732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155838707732 is an abundant number, since it is smaller than the sum of its proper divisors (1591253520428).

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

1155838707732 is a wasteful number, since it uses less digits than its factorization.

1155838707732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190280 (or 5190278 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 57.

The spelling of 1155838707732 in words is "one trillion, one hundred fifty-five billion, eight hundred thirty-eight million, seven hundred seven thousand, seven hundred thirty-two".