11512555214454 has 48 divisors (see below), whose sum is σ = 30184178383008. Its totient is φ = 3095813166336.

The previous prime is 11512555214383. The next prime is 11512555214473. The reversal of 11512555214454 is 45441255521511.

11512555214454 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 2 + 5 + 552 + 1 + 44 + 54 = 666.

It is a super-3 number, since 3×11512555214454³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2687335677 + ... + 2687339960.

It is an arithmetic number, because the mean of its divisors is an integer number (628837049646).

Almost surely, 2^{11512555214454} is an apocalyptic number.

11512555214454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11512555214454 is an abundant number, since it is smaller than the sum of its proper divisors (18671623168554).

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

11512555214454 is a wasteful number, since it uses less digits than its factorization.

11512555214454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374675669 (or 5374675666 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

The spelling of 11512555214454 in words is "eleven trillion, five hundred twelve billion, five hundred fifty-five million, two hundred fourteen thousand, four hundred fifty-four".