3601432661 has 8 divisors (see below), whose sum is σ = 3714039000. Its totient is φ = 3490005760.

The previous prime is 3601432631. The next prime is 3601432663. The reversal of 3601432661 is 1662341063.

It can be written as a sum of positive squares in 4 ways, for example, as 24196561 + 3577236100 = 4919^2 + 59810^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3601432661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3601432663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288656 + ... + 300873.

It is an arithmetic number, because the mean of its divisors is an integer number (464254875).

Almost surely, 2^3601432661 is an apocalyptic number.

It is an amenable number.

3601432661 is a deficient number, since it is larger than the sum of its proper divisors (112606339).

3601432661 is a wasteful number, since it uses less digits than its factorization.

3601432661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589719.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 3601432661 is about 60011.9376541035. The cubic root of 3601432661 is about 1532.8221455342.

The spelling of 3601432661 in words is "three billion, six hundred one million, four hundred thirty-two thousand, six hundred sixty-one".