551665605010 has 16 divisors (see below), whose sum is σ = 1069382557656. Its totient is φ = 203691915648.

The previous prime is 551665604999. The next prime is 551665605011. The reversal of 551665605010 is 10506566155.

It can be written as a sum of positive squares in 4 ways, for example, as 299142269721 + 252523335289 = 546939^2 + 502517^2 .

It is a super-3 number, since 3×551665605010³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (551665605011) 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, 2121790659 + ... + 2121790918.

Almost surely, 2^551665605010 is an apocalyptic number.

551665605010 is a deficient number, since it is larger than the sum of its proper divisors (517716952646).

551665605010 is a wasteful number, since it uses less digits than its factorization.

551665605010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243581597.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 551665605010 in words is "five hundred fifty-one billion, six hundred sixty-five million, six hundred five thousand, ten".