7665055855 has 4 divisors (see below), whose sum is σ = 9198067032. Its totient is φ = 6132044680.

The previous prime is 7665055841. The next prime is 7665055891. The reversal of 7665055855 is 5585505667.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7665055855 - 2²¹ = 7662958703 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 766505581 + ... + 766505590.

It is an arithmetic number, because the mean of its divisors is an integer number (2299516758).

Almost surely, 2^7665055855 is an apocalyptic number.

7665055855 is a deficient number, since it is larger than the sum of its proper divisors (1533011177).

7665055855 is a wasteful number, since it uses less digits than its factorization.

7665055855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533011176.

The product of its (nonzero) digits is 6300000, while the sum is 52.

The square root of 7665055855 is about 87550.3047110631. The cubic root of 7665055855 is about 1971.6891260689.

The spelling of 7665055855 in words is "seven billion, six hundred sixty-five million, fifty-five thousand, eight hundred fifty-five".