1166665752 has 96 divisors (see below), whose sum is σ = 3662081280. Its totient is φ = 328628160.

The previous prime is 1166665739. The next prime is 1166665763. The reversal of 1166665752 is 2575666611.

It is a super-2 number, since 2×1166665752² = 2722217953779451008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166665698 and 1166665707.

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, 19483 + ... + 52085.

It is an arithmetic number, because the mean of its divisors is an integer number (38146680).

Almost surely, 2^1166665752 is an apocalyptic number.

1166665752 is a gapful number since it is divisible by the number (12) 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 1166665752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831040640).

1166665752 is an abundant number, since it is smaller than the sum of its proper divisors (2495415528).

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

1166665752 is a wasteful number, since it uses less digits than its factorization.

1166665752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32693 (or 32686 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 1166665752 is about 34156.4891638470. The cubic root of 1166665752 is about 1052.7263244968.

The spelling of 1166665752 in words is "one billion, one hundred sixty-six million, six hundred sixty-five thousand, seven hundred fifty-two".