11541661140 has 24 divisors (see below), whose sum is σ = 32316651360. Its totient is φ = 3077776288.

The previous prime is 11541661139. The next prime is 11541661147. The reversal of 11541661140 is 4116614511.

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

It is a junction number, because it is equal to n+sod(n) for n = 11541661098 and 11541661107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541661147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96180450 + ... + 96180569.

It is an arithmetic number, because the mean of its divisors is an integer number (1346527140).

Almost surely, 2^11541661140 is an apocalyptic number.

11541661140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11541661140 is an abundant number, since it is smaller than the sum of its proper divisors (20774990220).

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

11541661140 is a wasteful number, since it uses less digits than its factorization.

11541661140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192361031 (or 192361029 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 11541661140 in words is "eleven billion, five hundred forty-one million, six hundred sixty-one thousand, one hundred forty".