3551641464 has 64 divisors (see below), whose sum is σ = 10195741440. Its totient is φ = 1009935360.

The previous prime is 3551641451. The next prime is 3551641469. The reversal of 3551641464 is 4641461553.

It is a super-2 number, since 2×3551641464² = 25228314177608126592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551641469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14649 + ... + 85544.

It is an arithmetic number, because the mean of its divisors is an integer number (159308460).

Almost surely, 2^3551641464 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 3551641464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5097870720).

3551641464 is an abundant number, since it is smaller than the sum of its proper divisors (6644099976).

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

3551641464 is a wasteful number, since it uses less digits than its factorization.

3551641464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100420 (or 100416 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 3551641464 is about 59595.6497070046. The cubic root of 3551641464 is about 1525.7253865547.

The spelling of 3551641464 in words is "three billion, five hundred fifty-one million, six hundred forty-one thousand, four hundred sixty-four".