64253201664346 has 48 divisors (see below), whose sum is σ = 101101331783232. Its totient is φ = 30609249269760.

The previous prime is 64253201664277. The next prime is 64253201664349. The reversal of 64253201664346 is 64346610235246.

It is a junction number, because it is equal to n+sod(n) for n = 64253201664293 and 64253201664302.

It is not an unprimeable number, because it can be changed into a prime (64253201664349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1008605131 + ... + 1008668833.

It is an arithmetic number, because the mean of its divisors is an integer number (2106277745484).

Almost surely, 2^{64253201664346} is an apocalyptic number.

64253201664346 is a deficient number, since it is larger than the sum of its proper divisors (36848130118886).

64253201664346 is a wasteful number, since it uses less digits than its factorization.

64253201664346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70807 (or 70766 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 52.

The spelling of 64253201664346 in words is "sixty-four trillion, two hundred fifty-three billion, two hundred one million, six hundred sixty-four thousand, three hundred forty-six".