64165656146 has 16 divisors (see below), whose sum is σ = 97998033600. Its totient is φ = 31500958608.

The previous prime is 64165656127. The next prime is 64165656161.

64165656146 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64165656094 and 64165656103.

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 7 ways as a sum of consecutive naturals, for example, 230150 + ... + 425793.

It is an arithmetic number, because the mean of its divisors is an integer number (6124877100).

Almost surely, 2^64165656146 is an apocalyptic number.

64165656146 is a deficient number, since it is larger than the sum of its proper divisors (33832377454).

64165656146 is a wasteful number, since it uses less digits than its factorization.

64165656146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656833.

The product of its digits is 3110400, while the sum is 50.

The spelling of 64165656146 in words is "sixty-four billion, one hundred sixty-five million, six hundred fifty-six thousand, one hundred forty-six".