3636666975 has 24 divisors (see below), whose sum is σ = 6329079040. Its totient is φ = 1837473120.

The previous prime is 3636666973. The next prime is 3636666991. The reversal of 3636666975 is 5796666363.

3636666975 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 3636666975 - 2¹ = 3636666973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636666973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1274599 + ... + 1277448.

Almost surely, 2^3636666975 is an apocalyptic number.

3636666975 is a deficient number, since it is larger than the sum of its proper divisors (2692412065).

3636666975 is a wasteful number, since it uses less digits than its factorization.

3636666975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552079 (or 2552074 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 57.

The square root of 3636666975 is about 60304.7840142057. The cubic root of 3636666975 is about 1537.8046775404.

The spelling of 3636666975 in words is "three billion, six hundred thirty-six million, six hundred sixty-six thousand, nine hundred seventy-five".