3652556641 has 16 divisors (see below), whose sum is σ = 4018366800. Its totient is φ = 3304562688.

The previous prime is 3652556623. The next prime is 3652556683. The reversal of 3652556641 is 1466552563.

It can be written as a sum of positive squares in 8 ways, for example, as 1281353616 + 2371203025 = 35796^2 + 48695^2 .

It is a cyclic number.

It is not a de Polignac number, because 3652556641 - 2¹¹ = 3652554593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3652596641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96721 + ... + 129073.

It is an arithmetic number, because the mean of its divisors is an integer number (251147925).

Almost surely, 2^3652556641 is an apocalyptic number.

It is an amenable number.

3652556641 is a deficient number, since it is larger than the sum of its proper divisors (365810159).

3652556641 is a wasteful number, since it uses less digits than its factorization.

3652556641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32628.

The product of its digits is 648000, while the sum is 43.

The square root of 3652556641 is about 60436.3850755487. The cubic root of 3652556641 is about 1540.0411302052.

The spelling of 3652556641 in words is "three billion, six hundred fifty-two million, five hundred fifty-six thousand, six hundred forty-one".