11601666 has 24 divisors (see below), whose sum is σ = 26460720. Its totient is φ = 3663576.

The previous prime is 11601659. The next prime is 11601673. The reversal of 11601666 is 66610611.

It is an interprime number because it is at equal distance from previous prime (11601659) and next prime (11601673).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16620 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (1102530).

Almost surely, 2^11601666 is an apocalyptic number.

11601666 is an abundant number, since it is smaller than the sum of its proper divisors (14859054).

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

11601666 is a wasteful number, since it uses less digits than its factorization.

11601666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33950 (or 33947 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 11601666 is about 3406.1218416258. The cubic root of 11601666 is about 226.3810758238.

The spelling of 11601666 in words is "eleven million, six hundred one thousand, six hundred sixty-six".