11055601661560 has 16 divisors (see below), whose sum is σ = 24875103738600. Its totient is φ = 4422240664608.

The previous prime is 11055601661557. The next prime is 11055601661569. The reversal of 11055601661560 is 6516610655011.

It is a super-3 number, since 3×11055601661560³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055601661569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138195020730 + ... + 138195020809.

Almost surely, 2^{11055601661560} is an apocalyptic number.

11055601661560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11055601661560 is an abundant number, since it is smaller than the sum of its proper divisors (13819502077040).

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

11055601661560 is a wasteful number, since it uses less digits than its factorization.

11055601661560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276390041550 (or 276390041546 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 11055601661560 in words is "eleven trillion, fifty-five billion, six hundred one million, six hundred sixty-one thousand, five hundred sixty".