11451454506 has 24 divisors (see below), whose sum is σ = 24823050564. Its totient is φ = 3815372160.

The previous prime is 11451454501. The next prime is 11451454523. The reversal of 11451454506 is 60545415411.

11451454506 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 145 + 4 + 506 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11198930625 + 252523881 = 105825^2 + 15891^2 .

It is a super-2 number, since 2×11451454506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11451454501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108301 + ... + 186096.

Almost surely, 2^11451454506 is an apocalyptic number.

11451454506 is an abundant number, since it is smaller than the sum of its proper divisors (13371596058).

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

11451454506 is a wasteful number, since it uses less digits than its factorization.

11451454506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296566 (or 296563 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 11451454506 its reverse (60545415411), we get a palindrome (71996869917).

The spelling of 11451454506 in words is "eleven billion, four hundred fifty-one million, four hundred fifty-four thousand, five hundred six".