3511808664 has 128 divisors (see below), whose sum is σ = 10954083840. Its totient is φ = 913462272.

The previous prime is 3511808549. The next prime is 3511808669. The reversal of 3511808664 is 4668081153.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3511808669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148419 + ... + 170445.

It is an arithmetic number, because the mean of its divisors is an integer number (85578780).

Almost surely, 2^3511808664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3511808664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5477041920).

3511808664 is an abundant number, since it is smaller than the sum of its proper divisors (7442275176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3511808664 is a wasteful number, since it uses less digits than its factorization.

3511808664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22129 (or 22125 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 3511808664 is about 59260.5152188200. The cubic root of 3511808664 is about 1520.0000957987. Note that the first 4 decimals are identical.

It can be divided in two parts, 3511 and 808664, that added together give a triangular number (812175 = T₁₂₇₄).

The spelling of 3511808664 in words is "three billion, five hundred eleven million, eight hundred eight thousand, six hundred sixty-four".