1155513281804 has 24 divisors (see below), whose sum is σ = 2432659541760. Its totient is φ = 469155768336.

The previous prime is 1155513281803. The next prime is 1155513281807. The reversal of 1155513281804 is 4081823155511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1155513281801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1086008192 + ... + 1086009255.

It is an arithmetic number, because the mean of its divisors is an integer number (101360814240).

Almost surely, 2^{1155513281804} is an apocalyptic number.

1155513281804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1155513281804 is an abundant number, since it is smaller than the sum of its proper divisors (1277146259956).

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

1155513281804 is a wasteful number, since it uses less digits than its factorization.

1155513281804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172017477 (or 2172017475 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 44.

The spelling of 1155513281804 in words is "one trillion, one hundred fifty-five billion, five hundred thirteen million, two hundred eighty-one thousand, eight hundred four".