2366661 has 16 divisors (see below), whose sum is σ = 3562560. Its totient is φ = 1384320.

The previous prime is 2366657. The next prime is 2366669. The reversal of 2366661 is 1666632.

It is not a de Polignac number, because 2366661 - 2² = 2366657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2366669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (222660).

2^2366661 is an apocalyptic number.

It is an amenable number.

2366661 is a deficient number, since it is larger than the sum of its proper divisors (1195899).

2366661 is a wasteful number, since it uses less digits than its factorization.

2366661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516.

The product of its digits is 7776, while the sum is 30.

The square root of 2366661 is about 1538.3955928174. The cubic root of 2366661 is about 133.2637463276.

It can be divided in two parts, 2 and 366661, that added together give a palindrome (366663).

The spelling of 2366661 in words is "two million, three hundred sixty-six thousand, six hundred sixty-one".