3661315664 has 10 divisors (see below), whose sum is σ = 7093799130. Its totient is φ = 1830657824.

The previous prime is 3661315661. The next prime is 3661315681. The reversal of 3661315664 is 4665131663.

It can be written as a sum of positive squares in only one way, i.e., 1989160000 + 1672155664 = 44600^2 + 40892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661315661) 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 as a sum of consecutive naturals, namely, 114416099 + ... + 114416130.

It is an arithmetic number, because the mean of its divisors is an integer number (709379913).

Almost surely, 2^3661315664 is an apocalyptic number.

It is an amenable number.

3661315664 is a deficient number, since it is larger than the sum of its proper divisors (3432483466).

3661315664 is a wasteful number, since it uses less digits than its factorization.

3661315664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228832237 (or 228832231 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 3661315664 is about 60508.8064995501. The cubic root of 3661315664 is about 1541.2711807059.

The spelling of 3661315664 in words is "three billion, six hundred sixty-one million, three hundred fifteen thousand, six hundred sixty-four".