1166441572425 has 48 divisors (see below), whose sum is σ = 2014849041408. Its totient is φ = 594319809600.

The previous prime is 1166441572399. The next prime is 1166441572447. The reversal of 1166441572425 is 5242751446611.

It is a happy number.

It is not a de Polignac number, because 1166441572425 - 2⁵ = 1166441572393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 982084 + ... + 1815866.

It is an arithmetic number, because the mean of its divisors is an integer number (41976021696).

Almost surely, 2^{1166441572425} is an apocalyptic number.

1166441572425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166441572425 is a deficient number, since it is larger than the sum of its proper divisors (848407468983).

1166441572425 is a wasteful number, since it uses less digits than its factorization.

1166441572425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834630 (or 834625 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The spelling of 1166441572425 in words is "one trillion, one hundred sixty-six billion, four hundred forty-one million, five hundred seventy-two thousand, four hundred twenty-five".