11445651131155 has 16 divisors (see below), whose sum is σ = 13750327672704. Its totient is φ = 9146161814400.

The previous prime is 11445651131087. The next prime is 11445651131203. The reversal of 11445651131155 is 55113115654411.

11445651131155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11445651131155 - 2⁷ = 11445651131027 is a prime.

It is a super-2 number, since 2×11445651131155² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17681389 + ... + 18317281.

It is an arithmetic number, because the mean of its divisors is an integer number (859395479544).

Almost surely, 2^{11445651131155} is an apocalyptic number.

11445651131155 is a deficient number, since it is larger than the sum of its proper divisors (2304676541549).

11445651131155 is a wasteful number, since it uses less digits than its factorization.

11445651131155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639966.

The product of its digits is 180000, while the sum is 43.

Adding to 11445651131155 its reverse (55113115654411), we get a palindrome (66558766785566).

The spelling of 11445651131155 in words is "eleven trillion, four hundred forty-five billion, six hundred fifty-one million, one hundred thirty-one thousand, one hundred fifty-five".