64550557447146 has 48 divisors (see below), whose sum is σ = 148676559490368. Its totient is φ = 20170473360000.

The previous prime is 64550557447139. The next prime is 64550557447151. The reversal of 64550557447146 is 64174475505546.

64550557447146 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 0 + 5 + 574 + 47 + 14 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420141390 + ... + 420295001.

It is an arithmetic number, because the mean of its divisors is an integer number (3097428322716).

Almost surely, 2^{64550557447146} is an apocalyptic number.

64550557447146 is an abundant number, since it is smaller than the sum of its proper divisors (84126002043222).

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

64550557447146 is a wasteful number, since it uses less digits than its factorization.

64550557447146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840436667 (or 840436664 counting only the distinct ones).

The product of its (nonzero) digits is 282240000, while the sum is 63.

The spelling of 64550557447146 in words is "sixty-four trillion, five hundred fifty billion, five hundred fifty-seven million, four hundred forty-seven thousand, one hundred forty-six".