64165799756146 has 32 divisors (see below), whose sum is σ = 109571354477568. Its totient is φ = 27896234205840.

The previous prime is 64165799756143. The next prime is 64165799756161.

64165799756146 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (64165799756143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888961 + ... + 11690923.

It is an arithmetic number, because the mean of its divisors is an integer number (3424104827424).

Almost surely, 2^{64165799756146} is an apocalyptic number.

64165799756146 is a deficient number, since it is larger than the sum of its proper divisors (45405554721422).

64165799756146 is a wasteful number, since it uses less digits than its factorization.

64165799756146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8816406.

The product of its digits is 2057529600, while the sum is 76.

The spelling of 64165799756146 in words is "sixty-four trillion, one hundred sixty-five billion, seven hundred ninety-nine million, seven hundred fifty-six thousand, one hundred forty-six".