11551344454 has 16 divisors (see below), whose sum is σ = 18662161392. Its totient is φ = 5330733408.

The previous prime is 11551344437. The next prime is 11551344479. The reversal of 11551344454 is 45444315511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235612 + ... + 280384.

It is an arithmetic number, because the mean of its divisors is an integer number (1166385087).

Almost surely, 2^11551344454 is an apocalyptic number.

11551344454 is a deficient number, since it is larger than the sum of its proper divisors (7110816938).

11551344454 is a wasteful number, since it uses less digits than its factorization.

11551344454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54711.

The product of its digits is 96000, while the sum is 37.

Adding to 11551344454 its reverse (45444315511), we get a palindrome (56995659965).

The spelling of 11551344454 in words is "eleven billion, five hundred fifty-one million, three hundred forty-four thousand, four hundred fifty-four".