3666105651 has 32 divisors (see below), whose sum is σ = 5676410880. Its totient is φ = 2085177600.

The previous prime is 3666105617. The next prime is 3666105683. The reversal of 3666105651 is 1565016663.

It is not a de Polignac number, because 3666105651 - 2⁷ = 3666105523 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (3666105691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29955 + ... + 90716.

It is an arithmetic number, because the mean of its divisors is an integer number (177387840).

Almost surely, 2^3666105651 is an apocalyptic number.

3666105651 is a deficient number, since it is larger than the sum of its proper divisors (2010305229).

3666105651 is a wasteful number, since it uses less digits than its factorization.

3666105651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120747.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 3666105651 is about 60548.3744703357. The cubic root of 3666105651 is about 1541.9430204148.

The spelling of 3666105651 in words is "three billion, six hundred sixty-six million, one hundred five thousand, six hundred fifty-one".