1145552004555 has 64 divisors (see below), whose sum is σ = 2117617606656. Its totient is φ = 517968000000.

The previous prime is 1145552004547. The next prime is 1145552004643. The reversal of 1145552004555 is 5554002555411.

It is a happy number.

It is not a de Polignac number, because 1145552004555 - 2³ = 1145552004547 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10455055 + ... + 10564055.

It is an arithmetic number, because the mean of its divisors is an integer number (33087775104).

Almost surely, 2^{1145552004555} is an apocalyptic number.

1145552004555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145552004555 is a deficient number, since it is larger than the sum of its proper divisors (972065602101).

1145552004555 is a wasteful number, since it uses less digits than its factorization.

1145552004555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110108.

The product of its (nonzero) digits is 500000, while the sum is 42.

Adding to 1145552004555 its reverse (5554002555411), we get a palindrome (6699554559966).

The spelling of 1145552004555 in words is "one trillion, one hundred forty-five billion, five hundred fifty-two million, four thousand, five hundred fifty-five".