65061155 has 4 divisors (see below), whose sum is σ = 78073392. Its totient is φ = 52048920.

The previous prime is 65061131. The next prime is 65061173. The reversal of 65061155 is 55116056.

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

It is not a de Polignac number, because 65061155 - 2⁸ = 65060899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6506111 + ... + 6506120.

It is an arithmetic number, because the mean of its divisors is an integer number (19518348).

Almost surely, 2^65061155 is an apocalyptic number.

65061155 is a deficient number, since it is larger than the sum of its proper divisors (13012237).

65061155 is a wasteful number, since it uses less digits than its factorization.

65061155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13012236.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 65061155 is about 8066.0495287346. The cubic root of 65061155 is about 402.1986324794.

The spelling of 65061155 in words is "sixty-five million, sixty-one thousand, one hundred fifty-five".