3541321661 has 8 divisors (see below), whose sum is σ = 3697510464. Its totient is φ = 3385317760.

The previous prime is 3541321657. The next prime is 3541321699. The reversal of 3541321661 is 1661231453.

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

It is a cyclic number.

It is not a de Polignac number, because 3541321661 - 2² = 3541321657 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 (3541320661) 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 7 ways as a sum of consecutive naturals, for example, 6335 + ... + 84396.

It is an arithmetic number, because the mean of its divisors is an integer number (462188808).

Almost surely, 2^3541321661 is an apocalyptic number.

It is an amenable number.

3541321661 is a deficient number, since it is larger than the sum of its proper divisors (156188803).

3541321661 is a wasteful number, since it uses less digits than its factorization.

3541321661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92451.

The product of its digits is 12960, while the sum is 32.

The square root of 3541321661 is about 59509.0048732123. The cubic root of 3541321661 is about 1524.2462150965.

The spelling of 3541321661 in words is "three billion, five hundred forty-one million, three hundred twenty-one thousand, six hundred sixty-one".