3591248661 has 216 divisors, whose sum is σ = 7417492992. Its totient is φ = 1656547200.

The previous prime is 3591248629. The next prime is 3591248663. The reversal of 3591248661 is 1668421953.

It is not a de Polignac number, because 3591248661 - 2⁵ = 3591248629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3591248663) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 21504400 + ... + 21504566.

Almost surely, 2^3591248661 is an apocalyptic number.

3591248661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3591248661 is an abundant number, since it is smaller than the sum of its proper divisors (3826244331).

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

3591248661 is a wasteful number, since it uses less digits than its factorization.

3591248661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 232 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3591248661 is about 59927.0278004841. The cubic root of 3591248661 is about 1531.3759619917.

It can be divided in two parts, 3591 and 248661, that added together give a palindrome (252252).

The spelling of 3591248661 in words is "three billion, five hundred ninety-one million, two hundred forty-eight thousand, six hundred sixty-one".