11451145154556 has 12 divisors (see below), whose sum is σ = 26719338693992. Its totient is φ = 3817048384848.

The previous prime is 11451145154483. The next prime is 11451145154593. The reversal of 11451145154556 is 65545154115411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11451145154556² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477131048095 + ... + 477131048118.

Almost surely, 2^{11451145154556} is an apocalyptic number.

It is an amenable number.

11451145154556 is an abundant number, since it is smaller than the sum of its proper divisors (15268193539436).

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

11451145154556 is a wasteful number, since it uses less digits than its factorization.

11451145154556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954262096220 (or 954262096218 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 48.

Adding to 11451145154556 its reverse (65545154115411), we get a palindrome (76996299269967).

The spelling of 11451145154556 in words is "eleven trillion, four hundred fifty-one billion, one hundred forty-five million, one hundred fifty-four thousand, five hundred fifty-six".