5666001555 has 16 divisors (see below), whose sum is σ = 9068820480. Its totient is φ = 3020794848.

The previous prime is 5666001547. The next prime is 5666001559. The reversal of 5666001555 is 5551006665.

It is not a de Polignac number, because 5666001555 - 2³ = 5666001547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5666001559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22417 + ... + 108786.

It is an arithmetic number, because the mean of its divisors is an integer number (566801280).

Almost surely, 2^5666001555 is an apocalyptic number.

5666001555 is a deficient number, since it is larger than the sum of its proper divisors (3402818925).

5666001555 is a wasteful number, since it uses less digits than its factorization.

5666001555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134090.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 5666001555 is about 75272.8473953258. The cubic root of 5666001555 is about 1782.7573259727.

The spelling of 5666001555 in words is "five billion, six hundred sixty-six million, one thousand, five hundred fifty-five".