64955821268458 has 16 divisors (see below), whose sum is σ = 102702898509120. Its totient is φ = 30726224280576.

The previous prime is 64955821268453. The next prime is 64955821268491. The reversal of 64955821268458 is 85486212855946.

It is not an unprimeable number, because it can be changed into a prime (64955821268453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175600791 + ... + 1175656042.

It is an arithmetic number, because the mean of its divisors is an integer number (6418931156820).

Almost surely, 2^{64955821268458} is an apocalyptic number.

64955821268458 is a deficient number, since it is larger than the sum of its proper divisors (37747077240662).

64955821268458 is a wasteful number, since it uses less digits than its factorization.

64955821268458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351257581.

The product of its digits is 1327104000, while the sum is 73.

The spelling of 64955821268458 in words is "sixty-four trillion, nine hundred fifty-five billion, eight hundred twenty-one million, two hundred sixty-eight thousand, four hundred fifty-eight".