1166705925 has 240 divisors, whose sum is σ = 2667448320. Its totient is φ = 444528000.

The previous prime is 1166705899. The next prime is 1166705951. The reversal of 1166705925 is 5295076611.

It is an interprime number because it is at equal distance from previous prime (1166705899) and next prime (1166705951).

It is not a de Polignac number, because 1166705925 - 2¹⁰ = 1166704901 is a prime.

It is a super-2 number, since 2×1166705925² = 2722405430860211250, which contains 22 as substring.

It is a congruent number.

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 239 ways as a sum of consecutive naturals, for example, 37635660 + ... + 37635690.

It is an arithmetic number, because the mean of its divisors is an integer number (11114368).

Almost surely, 2^1166705925 is an apocalyptic number.

1166705925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166705925 is an abundant number, since it is smaller than the sum of its proper divisors (1500742395).

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

1166705925 is a wasteful number, since it uses less digits than its factorization.

1166705925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1166705925 is about 34157.0772315197. The cubic root of 1166705925 is about 1052.7384075603.

The spelling of 1166705925 in words is "one billion, one hundred sixty-six million, seven hundred five thousand, nine hundred twenty-five".