1166660072 has 16 divisors (see below), whose sum is σ = 2218298400. Its totient is φ = 575113840.

The previous prime is 1166660069. The next prime is 1166660083. The reversal of 1166660072 is 2700666611.

It is a super-2 number, since 2×1166660072² = 2722191447198090368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026422 + ... + 1027557.

It is an arithmetic number, because the mean of its divisors is an integer number (138643650).

Almost surely, 2^1166660072 is an apocalyptic number.

It is an amenable number.

1166660072 is a deficient number, since it is larger than the sum of its proper divisors (1051638328).

1166660072 is a wasteful number, since it uses less digits than its factorization.

1166660072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054056 (or 2054052 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1166660072 is about 34156.4060170270. The cubic root of 1166660072 is about 1052.7246160682.

The spelling of 1166660072 in words is "one billion, one hundred sixty-six million, six hundred sixty thousand, seventy-two".