3664645545 has 128 divisors (see below), whose sum is σ = 7237029888. Its totient is φ = 1561190400.

The previous prime is 3664645541. The next prime is 3664645553. The reversal of 3664645545 is 5455464663.

It is not a de Polignac number, because 3664645545 - 2² = 3664645541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3664645494 and 3664645503.

It is not an unprimeable number, because it can be changed into a prime (3664645541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2773485 + ... + 2774805.

It is an arithmetic number, because the mean of its divisors is an integer number (56539296).

Almost surely, 2^3664645545 is an apocalyptic number.

It is an amenable number.

3664645545 is a deficient number, since it is larger than the sum of its proper divisors (3572384343).

3664645545 is a wasteful number, since it uses less digits than its factorization.

3664645545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its digits is 5184000, while the sum is 48.

The square root of 3664645545 is about 60536.3159186285. The cubic root of 3664645545 is about 1541.7382891618.

The spelling of 3664645545 in words is "three billion, six hundred sixty-four million, six hundred forty-five thousand, five hundred forty-five".