551645124406 has 8 divisors (see below), whose sum is σ = 832422583440. Its totient is φ = 274170929928.

The previous prime is 551645124389. The next prime is 551645124413. The reversal of 551645124406 is 604421546155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×551645124406² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825815721 + ... + 825816388.

It is an arithmetic number, because the mean of its divisors is an integer number (104052822930).

Almost surely, 2^551645124406 is an apocalyptic number.

551645124406 is a deficient number, since it is larger than the sum of its proper divisors (280777459034).

551645124406 is a wasteful number, since it uses less digits than its factorization.

551645124406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651632278.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 551645124406 in words is "five hundred fifty-one billion, six hundred forty-five million, one hundred twenty-four thousand, four hundred six".