3661026320201 has 4 divisors (see below), whose sum is σ = 3707368425600. Its totient is φ = 3614684214804.

The previous prime is 3661026320057. The next prime is 3661026320207. The reversal of 3661026320201 is 1020236201663.

3661026320201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3661026320201 - 2²⁶ = 3660959211337 is a prime.

It is a super-2 number, since 2×3661026320201² (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 (3661026320207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23171052581 + ... + 23171052738.

It is an arithmetic number, because the mean of its divisors is an integer number (926842106400).

Almost surely, 2^{3661026320201} is an apocalyptic number.

It is an amenable number.

3661026320201 is a deficient number, since it is larger than the sum of its proper divisors (46342105399).

3661026320201 is an equidigital number, since it uses as much as digits as its factorization.

3661026320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46342105398.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 3661026320201 in words is "three trillion, six hundred sixty-one billion, twenty-six million, three hundred twenty thousand, two hundred one".