3666135525 has 48 divisors (see below), whose sum is σ = 6561080064. Its totient is φ = 1795610880.

The previous prime is 3666135523. The next prime is 3666135533. The reversal of 3666135525 is 5255316663.

3666135525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3666135525 - 2¹ = 3666135523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666135521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182532 + ... + 201618.

It is an arithmetic number, because the mean of its divisors is an integer number (136689168).

Almost surely, 2^3666135525 is an apocalyptic number.

It is an amenable number.

3666135525 is a deficient number, since it is larger than the sum of its proper divisors (2894944539).

3666135525 is a wasteful number, since it uses less digits than its factorization.

3666135525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310 (or 19305 counting only the distinct ones).

The product of its digits is 486000, while the sum is 42.

The square root of 3666135525 is about 60548.6211651430. The cubic root of 3666135525 is about 1541.9472086812.

The spelling of 3666135525 in words is "three billion, six hundred sixty-six million, one hundred thirty-five thousand, five hundred twenty-five".