3641215601 has 16 divisors (see below), whose sum is σ = 3877617744. Its totient is φ = 3407345664.

The previous prime is 3641215549. The next prime is 3641215637. The reversal of 3641215601 is 1065121463.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 572166400 + 3069049201 = 23920^2 + 55399^2 .

It is a cyclic number.

It is not a de Polignac number, because 3641215601 - 2¹⁸ = 3640953457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3641215301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4248365 + ... + 4249221.

It is an arithmetic number, because the mean of its divisors is an integer number (242351109).

Almost surely, 2^3641215601 is an apocalyptic number.

It is an amenable number.

3641215601 is a deficient number, since it is larger than the sum of its proper divisors (236402143).

3641215601 is a wasteful number, since it uses less digits than its factorization.

3641215601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3641215601 is about 60342.4858702391. The cubic root of 3641215601 is about 1538.4455559492.

The spelling of 3641215601 in words is "three billion, six hundred forty-one million, two hundred fifteen thousand, six hundred one".