65044220870 has 64 divisors (see below), whose sum is σ = 119772297216. Its totient is φ = 25428224640.

The previous prime is 65044220867. The next prime is 65044220881. The reversal of 65044220870 is 7802244056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26579987 + ... + 26582433.

It is an arithmetic number, because the mean of its divisors is an integer number (1871442144).

Almost surely, 2^65044220870 is an apocalyptic number.

65044220870 is a deficient number, since it is larger than the sum of its proper divisors (54728076346).

65044220870 is a wasteful number, since it uses less digits than its factorization.

65044220870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 65044220870 in words is "sixty-five billion, forty-four million, two hundred twenty thousand, eight hundred seventy".