3646801620001 has 4 divisors (see below), whose sum is σ = 3861319362372. Its totient is φ = 3432283877632.

The previous prime is 3646801619987. The next prime is 3646801620079. The reversal of 3646801620001 is 1000261086463.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3176678840976 + 470122779025 = 1782324^2 + 685655^2 .

It is a cyclic number.

It is not a de Polignac number, because 3646801620001 - 2³⁷ = 3509362666529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3646801620401) 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, 107258871160 + ... + 107258871193.

It is an arithmetic number, because the mean of its divisors is an integer number (965329840593).

Almost surely, 2^{3646801620001} is an apocalyptic number.

It is an amenable number.

3646801620001 is a deficient number, since it is larger than the sum of its proper divisors (214517742371).

3646801620001 is a wasteful number, since it uses less digits than its factorization.

3646801620001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214517742370.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 3646801620001 in words is "three trillion, six hundred forty-six billion, eight hundred one million, six hundred twenty thousand, one".