64044351445156 has 12 divisors (see below), whose sum is σ = 113187294386460. Its totient is φ = 31705124477600.

The previous prime is 64044351445121. The next prime is 64044351445229. The reversal of 64044351445156 is 65154415344046.

It can be written as a sum of positive squares in 2 ways, for example, as 50133197030400 + 13911154414756 = 7080480^2 + 3729766^2 .

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, 79262810791 + ... + 79262811598.

It is an arithmetic number, because the mean of its divisors is an integer number (9432274532205).

Almost surely, 2^{64044351445156} is an apocalyptic number.

It is an amenable number.

64044351445156 is a deficient number, since it is larger than the sum of its proper divisors (49142942941304).

64044351445156 is a wasteful number, since it uses less digits than its factorization.

64044351445156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158525622494 (or 158525622492 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 64044351445156 in words is "sixty-four trillion, forty-four billion, three hundred fifty-one million, four hundred forty-five thousand, one hundred fifty-six".