1161155036250 has 120 divisors (see below), whose sum is σ = 3429587880576. Its totient is φ = 281492100000.

The previous prime is 1161155036233. The next prime is 1161155036257. The reversal of 1161155036250 is 526305511611.

1161155036250 is a `hidden beast` number, since 1 + 1 + 611 + 5 + 5 + 0 + 36 + 2 + 5 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (1161155036257) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4567786 + ... + 4815285.

Almost surely, 2^{1161155036250} is an apocalyptic number.

1161155036250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161155036250 is an abundant number, since it is smaller than the sum of its proper divisors (2268432844326).

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

1161155036250 is a wasteful number, since it uses less digits than its factorization.

1161155036250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383110 (or 9383092 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 1161155036250 in words is "one trillion, one hundred sixty-one billion, one hundred fifty-five million, thirty-six thousand, two hundred fifty".