64949424165 has 24 divisors (see below), whose sum is σ = 116210585088. Its totient is φ = 33522282720.

The previous prime is 64949424061. The next prime is 64949424173. The reversal of 64949424165 is 56142494946.

64949424165 is a `hidden beast` number, since 6 + 494 + 94 + 2 + 4 + 1 + 65 = 666.

It is not a de Polignac number, because 64949424165 - 2⁹ = 64949423653 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 23277969 + ... + 23280758.

It is an arithmetic number, because the mean of its divisors is an integer number (4842107712).

Almost surely, 2^64949424165 is an apocalyptic number.

It is an amenable number.

64949424165 is a deficient number, since it is larger than the sum of its proper divisors (51261160923).

64949424165 is a wasteful number, since it uses less digits than its factorization.

64949424165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46558769 (or 46558766 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 64949424165 in words is "sixty-four billion, nine hundred forty-nine million, four hundred twenty-four thousand, one hundred sixty-five".