1173151166044 has 72 divisors (see below), whose sum is σ = 2425659726672. Its totient is φ = 492135022080.

The previous prime is 1173151166039. The next prime is 1173151166059. The reversal of 1173151166044 is 4406611513711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1173151165988 and 1173151166006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48121042 + ... + 48145414.

It is an arithmetic number, because the mean of its divisors is an integer number (33689718426).

Almost surely, 2^{1173151166044} is an apocalyptic number.

It is an amenable number.

1173151166044 is an abundant number, since it is smaller than the sum of its proper divisors (1252508560628).

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

1173151166044 is a wasteful number, since it uses less digits than its factorization.

1173151166044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30887 (or 30872 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

Adding to 1173151166044 its reverse (4406611513711), we get a palindrome (5579762679755).

The spelling of 1173151166044 in words is "one trillion, one hundred seventy-three billion, one hundred fifty-one million, one hundred sixty-six thousand, forty-four".