65506015055 has 32 divisors (see below), whose sum is σ = 85091731200. Its totient is φ = 48123919872.

The previous prime is 65506015033. The next prime is 65506015111. The reversal of 65506015055 is 55051060556.

It is a cyclic number.

It is not a de Polignac number, because 65506015055 - 2¹⁴ = 65505998671 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27790937 + ... + 27793293.

It is an arithmetic number, because the mean of its divisors is an integer number (2659116600).

Almost surely, 2^65506015055 is an apocalyptic number.

65506015055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65506015055 is a deficient number, since it is larger than the sum of its proper divisors (19585716145).

65506015055 is a wasteful number, since it uses less digits than its factorization.

65506015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 65506015055 in words is "sixty-five billion, five hundred six million, fifteen thousand, fifty-five".