551601666097 has 8 divisors (see below), whose sum is σ = 551866640832. Its totient is φ = 551336763600.

The previous prime is 551601666047. The next prime is 551601666107. The reversal of 551601666097 is 790666106155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 551601666097 - 2²⁷ = 551467448369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551601666037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20347522 + ... + 20374612.

It is an arithmetic number, because the mean of its divisors is an integer number (68983330104).

Almost surely, 2^551601666097 is an apocalyptic number.

It is an amenable number.

551601666097 is a deficient number, since it is larger than the sum of its proper divisors (264974735).

551601666097 is a wasteful number, since it uses less digits than its factorization.

551601666097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36119.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 551601666097 in words is "five hundred fifty-one billion, six hundred one million, six hundred sixty-six thousand, ninety-seven".