1151533213500 has 96 divisors (see below), whose sum is σ = 3355617545280. Its totient is φ = 306860064000.

The previous prime is 1151533213469. The next prime is 1151533213513. The reversal of 1151533213500 is 53123351511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1874890 + ... + 2412110.

It is an arithmetic number, because the mean of its divisors is an integer number (34954349430).

Almost surely, 2^{1151533213500} is an apocalyptic number.

1151533213500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151533213500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677808772640).

1151533213500 is an abundant number, since it is smaller than the sum of its proper divisors (2204084331780).

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

1151533213500 is a wasteful number, since it uses less digits than its factorization.

1151533213500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538672 (or 538660 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

The spelling of 1151533213500 in words is "one trillion, one hundred fifty-one billion, five hundred thirty-three million, two hundred thirteen thousand, five hundred".