551062640164 has 12 divisors (see below), whose sum is σ = 964402500124. Its totient is φ = 275519068704.

The previous prime is 551062640143. The next prime is 551062640173. The reversal of 551062640164 is 461046260155.

It can be written as a sum of positive squares in 2 ways, for example, as 19388334564 + 531674305600 = 139242^2 + 729160^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 2961267 + ... + 3141850.

Almost surely, 2^551062640164 is an apocalyptic number.

It is an amenable number.

551062640164 is a deficient number, since it is larger than the sum of its proper divisors (413339859960).

551062640164 is a wasteful number, since it uses less digits than its factorization.

551062640164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125694 (or 6125692 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 551062640164 in words is "five hundred fifty-one billion, sixty-two million, six hundred forty thousand, one hundred sixty-four".