3666326744651 has 16 divisors (see below), whose sum is σ = 3838876892928. Its totient is φ = 3494876061600.

The previous prime is 3666326744609. The next prime is 3666326744659. The reversal of 3666326744651 is 1564476236663.

3666326744651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3666326744651 - 2²² = 3666322550347 is a prime.

It is a super-2 number, since 2×3666326744651² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666326744659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42400481 + ... + 42486861.

It is an arithmetic number, because the mean of its divisors is an integer number (239929805808).

Almost surely, 2^{3666326744651} is an apocalyptic number.

3666326744651 is a deficient number, since it is larger than the sum of its proper divisors (172550148277).

3666326744651 is a wasteful number, since it uses less digits than its factorization.

3666326744651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92722.

The product of its digits is 78382080, while the sum is 59.

The spelling of 3666326744651 in words is "three trillion, six hundred sixty-six billion, three hundred twenty-six million, seven hundred forty-four thousand, six hundred fifty-one".