3550206404551 has 4 divisors (see below), whose sum is σ = 3636796804704. Its totient is φ = 3463616004400.

The previous prime is 3550206404491. The next prime is 3550206404599. The reversal of 3550206404551 is 1554046020553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3550206404551 - 2¹¹ = 3550206402503 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550206401551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43295200015 + ... + 43295200096.

It is an arithmetic number, because the mean of its divisors is an integer number (909199201176).

Almost surely, 2^{3550206404551} is an apocalyptic number.

3550206404551 is a deficient number, since it is larger than the sum of its proper divisors (86590400153).

3550206404551 is an equidigital number, since it uses as much as digits as its factorization.

3550206404551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86590400152.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 3550206404551 in words is "three trillion, five hundred fifty billion, two hundred six million, four hundred four thousand, five hundred fifty-one".