552405605561665 has 8 divisors (see below), whose sum is σ = 662888295281448. Its totient is φ = 441923438711040.

The previous prime is 552405605561647. The next prime is 552405605561707. The reversal of 552405605561665 is 566165506504255.

It can be written as a sum of positive squares in 4 ways, for example, as 9461874432256 + 542943731129409 = 3076016^2 + 23301153^2 .

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

It is not a de Polignac number, because 552405605561665 - 2²¹ = 552405603464513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128389242 + ... + 132622051.

It is an arithmetic number, because the mean of its divisors is an integer number (82861036910181).

Almost surely, 2^{552405605561665} is an apocalyptic number.

It is an amenable number.

552405605561665 is a deficient number, since it is larger than the sum of its proper divisors (110482689719783).

552405605561665 is a wasteful number, since it uses less digits than its factorization.

552405605561665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261434579.

The product of its (nonzero) digits is 162000000, while the sum is 61.

The spelling of 552405605561665 in words is "five hundred fifty-two trillion, four hundred five billion, six hundred five million, five hundred sixty-one thousand, six hundred sixty-five".