551646040551 has 8 divisors (see below), whose sum is σ = 743110817904. Its totient is φ = 363972645120.

The previous prime is 551646040549. The next prime is 551646040573. The reversal of 551646040551 is 155040646155.

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

It is not a de Polignac number, because 551646040551 - 2¹ = 551646040549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551646040151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 947845140 + ... + 947845721.

It is an arithmetic number, because the mean of its divisors is an integer number (92888852238).

Almost surely, 2^551646040551 is an apocalyptic number.

551646040551 is a deficient number, since it is larger than the sum of its proper divisors (191464777353).

551646040551 is a wasteful number, since it uses less digits than its factorization.

551646040551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895690961.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 551646040551 in words is "five hundred fifty-one billion, six hundred forty-six million, forty thousand, five hundred fifty-one".