551459681966 has 8 divisors (see below), whose sum is σ = 827192691840. Its totient is φ = 275728784688.

The previous prime is 551459681917. The next prime is 551459682049. The reversal of 551459681966 is 669186954155.

551459681966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650570 + ... + 1235378.

It is an arithmetic number, because the mean of its divisors is an integer number (103399086480).

Almost surely, 2^551459681966 is an apocalyptic number.

551459681966 is a deficient number, since it is larger than the sum of its proper divisors (275733009874).

551459681966 is a wasteful number, since it uses less digits than its factorization.

551459681966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056298.

The product of its digits is 69984000, while the sum is 65.

The spelling of 551459681966 in words is "five hundred fifty-one billion, four hundred fifty-nine million, six hundred eighty-one thousand, nine hundred sixty-six".