64550041534446 has 64 divisors (see below), whose sum is σ = 141109437547008. Its totient is φ = 19564626077568.

The previous prime is 64550041534441. The next prime is 64550041534507. The reversal of 64550041534446 is 64443514005546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64550041534441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250369015 + ... + 250626701.

It is an arithmetic number, because the mean of its divisors is an integer number (2204834961672).

Almost surely, 2^{64550041534446} is an apocalyptic number.

64550041534446 is an abundant number, since it is smaller than the sum of its proper divisors (76559396012562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64550041534446 is a wasteful number, since it uses less digits than its factorization.

64550041534446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305705.

The product of its (nonzero) digits is 13824000, while the sum is 51.

The spelling of 64550041534446 in words is "sixty-four trillion, five hundred fifty billion, forty-one million, five hundred thirty-four thousand, four hundred forty-six".