3645620601 has 16 divisors (see below), whose sum is σ = 5562480000. Its totient is φ = 2080493568.

The previous prime is 3645620597. The next prime is 3645620609. The reversal of 3645620601 is 1060265463.

It is not a de Polignac number, because 3645620601 - 2² = 3645620597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3645620609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96726 + ... + 129023.

It is an arithmetic number, because the mean of its divisors is an integer number (347655000).

Almost surely, 2^3645620601 is an apocalyptic number.

It is an amenable number.

3645620601 is a deficient number, since it is larger than the sum of its proper divisors (1916859399).

3645620601 is a wasteful number, since it uses less digits than its factorization.

3645620601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226528.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 3645620601 is about 60378.9748256792. The cubic root of 3645620601 is about 1539.0656896683.

The spelling of 3645620601 in words is "three billion, six hundred forty-five million, six hundred twenty thousand, six hundred one".