11818158655548 has 96 divisors (see below), whose sum is σ = 33179674429440. Its totient is φ = 3198331569600.

The previous prime is 11818158655441. The next prime is 11818158655549. The reversal of 11818158655548 is 84555685181811.

It is a super-2 number, since 2×11818158655548² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11818158655549) 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, 8363815 + ... + 9674177.

It is an arithmetic number, because the mean of its divisors is an integer number (345621608640).

Almost surely, 2^{11818158655548} is an apocalyptic number.

It is an amenable number.

11818158655548 is an abundant number, since it is smaller than the sum of its proper divisors (21361515773892).

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

11818158655548 is a wasteful number, since it uses less digits than its factorization.

11818158655548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316047 (or 1316045 counting only the distinct ones).

The product of its digits is 61440000, while the sum is 66.

The spelling of 11818158655548 in words is "eleven trillion, eight hundred eighteen billion, one hundred fifty-eight million, six hundred fifty-five thousand, five hundred forty-eight".