64953644635946 has 32 divisors (see below), whose sum is σ = 107100924226560. Its totient is φ = 29298518636400.

The previous prime is 64953644635933. The next prime is 64953644635949.

64953644635946 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (64953644635949) 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, 215881505 + ... + 216182171.

It is an arithmetic number, because the mean of its divisors is an integer number (3346903882080).

Almost surely, 2^{64953644635946} is an apocalyptic number.

64953644635946 is a deficient number, since it is larger than the sum of its proper divisors (42147279590614).

64953644635946 is a wasteful number, since it uses less digits than its factorization.

64953644635946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375770.

The product of its digits is 6046617600, while the sum is 74.

The spelling of 64953644635946 in words is "sixty-four trillion, nine hundred fifty-three billion, six hundred forty-four million, six hundred thirty-five thousand, nine hundred forty-six".