3666524261 has 8 divisors (see below), whose sum is σ = 3819614400. Its totient is φ = 3516465760.

The previous prime is 3666524219. The next prime is 3666524293. The reversal of 3666524261 is 1624256663.

It is a happy number.

3666524261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3666524261 - 2¹⁴ = 3666507877 is a prime.

It is a super-2 number, since 2×3666524261² = 26886800313003192242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666526261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755441 + ... + 760278.

It is an arithmetic number, because the mean of its divisors is an integer number (477451800).

Almost surely, 2^3666524261 is an apocalyptic number.

It is an amenable number.

3666524261 is a deficient number, since it is larger than the sum of its proper divisors (153090139).

3666524261 is a wasteful number, since it uses less digits than its factorization.

3666524261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515819.

The product of its digits is 311040, while the sum is 41.

The square root of 3666524261 is about 60551.8311944404. The cubic root of 3666524261 is about 1542.0017065033.

The spelling of 3666524261 in words is "three billion, six hundred sixty-six million, five hundred twenty-four thousand, two hundred sixty-one".