1166552613604 has 96 divisors (see below), whose sum is σ = 2408424480000. Its totient is φ = 494155613952.

The previous prime is 1166552613581. The next prime is 1166552613617. The reversal of 1166552613604 is 4063162556611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62651304 + ... + 62669920.

It is an arithmetic number, because the mean of its divisors is an integer number (25087755000).

Almost surely, 2^{1166552613604} is an apocalyptic number.

1166552613604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166552613604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204212240000).

1166552613604 is an abundant number, since it is smaller than the sum of its proper divisors (1241871866396).

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

1166552613604 is a wasteful number, since it uses less digits than its factorization.

1166552613604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19170 (or 19154 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 1166552613604 in words is "one trillion, one hundred sixty-six billion, five hundred fifty-two million, six hundred thirteen thousand, six hundred four".