11615550003640 has 32 divisors (see below), whose sum is σ = 28510895464560. Its totient is φ = 4223836364800.

The previous prime is 11615550003611. The next prime is 11615550003643. The reversal of 11615550003640 is 4630005551611.

11615550003640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11615550003640² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11615550003640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11615550003643) 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, 13199488201 + ... + 13199489080.

Almost surely, 2^{11615550003640} is an apocalyptic number.

11615550003640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11615550003640 is an abundant number, since it is smaller than the sum of its proper divisors (16895345460920).

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

11615550003640 is a wasteful number, since it uses less digits than its factorization.

11615550003640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26398977303 (or 26398977299 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 11615550003640 in words is "eleven trillion, six hundred fifteen billion, five hundred fifty million, three thousand, six hundred forty".