3552021665 has 8 divisors (see below), whose sum is σ = 4361552448. Its totient is φ = 2775533040.

The previous prime is 3552021653. The next prime is 3552021677. The reversal of 3552021665 is 5661202553.

3552021665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3552021653) and next prime (3552021677).

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

It is a de Polignac number, because none of the positive numbers 2^k-3552021665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 8260301 + ... + 8260730.

It is an arithmetic number, because the mean of its divisors is an integer number (545194056).

Almost surely, 2^3552021665 is an apocalyptic number.

It is an amenable number.

3552021665 is a deficient number, since it is larger than the sum of its proper divisors (809530783).

3552021665 is a wasteful number, since it uses less digits than its factorization.

3552021665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521079.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 3552021665 is about 59598.8394601774. The cubic root of 3552021665 is about 1525.7798272620.

The spelling of 3552021665 in words is "three billion, five hundred fifty-two million, twenty-one thousand, six hundred sixty-five".