3641660315643 has 16 divisors (see below), whose sum is σ = 5549247614720. Its totient is φ = 2080929648096.

The previous prime is 3641660315641. The next prime is 3641660315651. The reversal of 3641660315643 is 3465130661463.

It is a happy number.

It is not a de Polignac number, because 3641660315643 - 2¹ = 3641660315641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3641660315592 and 3641660315601.

It is not an unprimeable number, because it can be changed into a prime (3641660315641) 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, 1732821 + ... + 3207177.

It is an arithmetic number, because the mean of its divisors is an integer number (346827975920).

Almost surely, 2^{3641660315643} is an apocalyptic number.

3641660315643 is a deficient number, since it is larger than the sum of its proper divisors (1907587299077).

3641660315643 is a wasteful number, since it uses less digits than its factorization.

3641660315643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591986.

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 3641660315643 in words is "three trillion, six hundred forty-one billion, six hundred sixty million, three hundred fifteen thousand, six hundred forty-three".