1155476521672 has 64 divisors (see below), whose sum is σ = 2386155231360. Its totient is φ = 520183372800.

The previous prime is 1155476521663. The next prime is 1155476521691. The reversal of 1155476521672 is 2761256745511.

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, 13610797 + ... + 13695427.

It is an arithmetic number, because the mean of its divisors is an integer number (37283675490).

Almost surely, 2^{1155476521672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155476521672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193077615680).

1155476521672 is an abundant number, since it is smaller than the sum of its proper divisors (1230678709688).

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

1155476521672 is a wasteful number, since it uses less digits than its factorization.

1155476521672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86134 (or 86130 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 52.

The spelling of 1155476521672 in words is "one trillion, one hundred fifty-five billion, four hundred seventy-six million, five hundred twenty-one thousand, six hundred seventy-two".