11556654026454 has 64 divisors (see below), whose sum is σ = 26228663239680. Its totient is φ = 3770141508000.

The previous prime is 11556654026399. The next prime is 11556654026471. The reversal of 11556654026454 is 45462045665511.

It is a happy number.

11556654026454 is a `hidden beast` number, since 1 + 1 + 5 + 56 + 6 + 540 + 2 + 6 + 45 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 11556654026454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137647072 + ... + 137731004.

It is an arithmetic number, because the mean of its divisors is an integer number (409822863120).

Almost surely, 2^{11556654026454} is an apocalyptic number.

11556654026454 is an abundant number, since it is smaller than the sum of its proper divisors (14672009213226).

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

11556654026454 is a wasteful number, since it uses less digits than its factorization.

11556654026454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138242 (or 138236 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 54.

The spelling of 11556654026454 in words is "eleven trillion, five hundred fifty-six billion, six hundred fifty-four million, twenty-six thousand, four hundred fifty-four".