551664287899 has 16 divisors (see below), whose sum is σ = 585018564480. Its totient is φ = 518742999360.

The previous prime is 551664287893. The next prime is 551664287947. The reversal of 551664287899 is 998782466155.

It is a cyclic number.

It is not a de Polignac number, because 551664287899 - 2¹³ = 551664279707 is a prime.

It is a super-2 number, since 2×551664287899² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551664287893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34900932 + ... + 34916734.

It is an arithmetic number, because the mean of its divisors is an integer number (36563660280).

Almost surely, 2^551664287899 is an apocalyptic number.

551664287899 is a deficient number, since it is larger than the sum of its proper divisors (33354276581).

551664287899 is a wasteful number, since it uses less digits than its factorization.

551664287899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370.

The product of its digits is 261273600, while the sum is 70.

The spelling of 551664287899 in words is "five hundred fifty-one billion, six hundred sixty-four million, two hundred eighty-seven thousand, eight hundred ninety-nine".