11661100601150 has 96 divisors (see below), whose sum is σ = 29121764087808. Its totient is φ = 3355041916800.

The previous prime is 11661100601141. The next prime is 11661100601197. The reversal of 11661100601150 is 5110600116611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116444462 + ... + 116544561.

It is an arithmetic number, because the mean of its divisors is an integer number (303351709248).

Almost surely, 2^{11661100601150} is an apocalyptic number.

11661100601150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11661100601150 is an abundant number, since it is smaller than the sum of its proper divisors (17460663486658).

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

11661100601150 is a wasteful number, since it uses less digits than its factorization.

11661100601150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232989066 (or 232989061 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

Adding to 11661100601150 its reverse (5110600116611), we get a palindrome (16771700717761).

The spelling of 11661100601150 in words is "eleven trillion, six hundred sixty-one billion, one hundred million, six hundred one thousand, one hundred fifty".