1155444536007 has 6 divisors (see below), whose sum is σ = 1668975440912. Its totient is φ = 770296357332.

The previous prime is 1155444535991. The next prime is 1155444536017. The reversal of 1155444536007 is 7006354445511.

It is a happy number.

1155444536007 is a `hidden beast` number, since 1 + 1 + 5 + 544 + 45 + 3 + 60 + 0 + 7 = 666.

It is not a de Polignac number, because 1155444536007 - 2⁴ = 1155444535991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155444536017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64191363103 + ... + 64191363120.

Almost surely, 2^{1155444536007} is an apocalyptic number.

1155444536007 is a deficient number, since it is larger than the sum of its proper divisors (513530904905).

1155444536007 is a wasteful number, since it uses less digits than its factorization.

1155444536007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128382726229 (or 128382726226 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 1155444536007 in words is "one trillion, one hundred fifty-five billion, four hundred forty-four million, five hundred thirty-six thousand, seven".