11661442613360 has 160 divisors (see below), whose sum is σ = 27876923530560. Its totient is φ = 4534901489664.

The previous prime is 11661442613347. The next prime is 11661442613369. The reversal of 11661442613360 is 6331624416611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661442613369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232882406 + ... + 232932474.

It is an arithmetic number, because the mean of its divisors is an integer number (174230772066).

Almost surely, 2^{11661442613360} is an apocalyptic number.

11661442613360 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 11661442613360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13938461765280).

11661442613360 is an abundant number, since it is smaller than the sum of its proper divisors (16215480917200).

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

11661442613360 is a wasteful number, since it uses less digits than its factorization.

11661442613360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50635 (or 50629 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 11661442613360 in words is "eleven trillion, six hundred sixty-one billion, four hundred forty-two million, six hundred thirteen thousand, three hundred sixty".