5401665606 has 32 divisors (see below), whose sum is σ = 10952156160. Its totient is φ = 1775801664.

The previous prime is 5401665551. The next prime is 5401665611. The reversal of 5401665606 is 6065661045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460146 + ... + 471738.

It is an arithmetic number, because the mean of its divisors is an integer number (342254880).

Almost surely, 2^5401665606 is an apocalyptic number.

5401665606 is an abundant number, since it is smaller than the sum of its proper divisors (5550490554).

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

5401665606 is a wasteful number, since it uses less digits than its factorization.

5401665606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12660.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 5401665606 is about 73496.0244230938. The cubic root of 5401665606 is about 1754.5910044402.

The spelling of 5401665606 in words is "five billion, four hundred one million, six hundred sixty-five thousand, six hundred six".