1166222625 has 64 divisors (see below), whose sum is σ = 1990759680. Its totient is φ = 606144000.

The previous prime is 1166222599. The next prime is 1166222633. The reversal of 1166222625 is 5262226611.

It is not a de Polignac number, because 1166222625 - 2¹¹ = 1166220577 is a prime.

It is a super-2 number, since 2×1166222625² = 2720150422123781250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2769915 + ... + 2770335.

It is an arithmetic number, because the mean of its divisors is an integer number (31105620).

Almost surely, 2^1166222625 is an apocalyptic number.

1166222625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166222625 is a deficient number, since it is larger than the sum of its proper divisors (824537055).

1166222625 is an equidigital number, since it uses as much as digits as its factorization.

1166222625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 601 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1166222625 is about 34150.0018301610. The cubic root of 1166222625 is about 1052.5930242403.

The spelling of 1166222625 in words is "one billion, one hundred sixty-six million, two hundred twenty-two thousand, six hundred twenty-five".