64855346011542 has 48 divisors (see below), whose sum is σ = 143071935552000. Its totient is φ = 21226703798832.

The previous prime is 64855346011541. The next prime is 64855346011579. The reversal of 64855346011542 is 24511064355846.

64855346011542 is a `hidden beast` number, since 6 + 4 + 8 + 5 + 5 + 34 + 60 + 1 + 1 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64855346011541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35502942 + ... + 37284977.

It is an arithmetic number, because the mean of its divisors is an integer number (2980665324000).

Almost surely, 2^{64855346011542} is an apocalyptic number.

64855346011542 is an abundant number, since it is smaller than the sum of its proper divisors (78216589540458).

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

64855346011542 is a wasteful number, since it uses less digits than its factorization.

64855346011542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72788825 (or 72788822 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 64855346011542 in words is "sixty-four trillion, eight hundred fifty-five billion, three hundred forty-six million, eleven thousand, five hundred forty-two".