3531169665 has 24 divisors (see below), whose sum is σ = 6442837440. Its totient is φ = 1784169504.

The previous prime is 3531169661. The next prime is 3531169687. The reversal of 3531169665 is 5669611353.

It is not a de Polignac number, because 3531169665 - 2² = 3531169661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3531169665.

It is not an unprimeable number, because it can be changed into a prime (3531169661) 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 23 ways as a sum of consecutive naturals, for example, 2064157 + ... + 2065866.

It is an arithmetic number, because the mean of its divisors is an integer number (268451560).

Almost surely, 2^3531169665 is an apocalyptic number.

It is an amenable number.

3531169665 is a deficient number, since it is larger than the sum of its proper divisors (2911667775).

3531169665 is a wasteful number, since it uses less digits than its factorization.

3531169665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130053 (or 4130050 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 3531169665 is about 59423.6456724089. The cubic root of 3531169665 is about 1522.7882893784.

It can be divided in two parts, 35311 and 69665, that added together give a 4-th power (104976 = 18⁴).

The spelling of 3531169665 in words is "three billion, five hundred thirty-one million, one hundred sixty-nine thousand, six hundred sixty-five".