11520514641454 has 64 divisors (see below), whose sum is σ = 22410506764800. Its totient is φ = 4313362347648.

The previous prime is 11520514641379. The next prime is 11520514641479. The reversal of 11520514641454 is 45414641502511.

It is a self number, because there is not a number n which added to its sum of digits gives 11520514641454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776837 + ... + 5118415.

It is an arithmetic number, because the mean of its divisors is an integer number (350164168200).

Almost surely, 2^{11520514641454} is an apocalyptic number.

11520514641454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11520514641454 is a deficient number, since it is larger than the sum of its proper divisors (10889992123346).

11520514641454 is a wasteful number, since it uses less digits than its factorization.

11520514641454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342617.

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 11520514641454 in words is "eleven trillion, five hundred twenty billion, five hundred fourteen million, six hundred forty-one thousand, four hundred fifty-four".