3666064765 has 32 divisors (see below), whose sum is σ = 4925878272. Its totient is φ = 2596776000.

The previous prime is 3666064729. The next prime is 3666064781. The reversal of 3666064765 is 5674606663.

It is a de Polignac number, because none of the positive numbers 2^k-3666064765 is a prime.

It is a super-2 number, since 2×3666064765² = 26880061722349010450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318460 + ... + 329770.

It is an arithmetic number, because the mean of its divisors is an integer number (153933696).

Almost surely, 2^3666064765 is an apocalyptic number.

It is an amenable number.

3666064765 is a deficient number, since it is larger than the sum of its proper divisors (1259813507).

3666064765 is a wasteful number, since it uses less digits than its factorization.

3666064765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11481.

The product of its (nonzero) digits is 3265920, while the sum is 49.

The square root of 3666064765 is about 60548.0368385301. The cubic root of 3666064765 is about 1541.9372882545.

The spelling of 3666064765 in words is "three billion, six hundred sixty-six million, sixty-four thousand, seven hundred sixty-five".