85355644655358 has 144 divisors (see below), whose sum is σ = 247040456307840. Its totient is φ = 21003439514400.

The previous prime is 85355644655357. The next prime is 85355644655389.

85355644655358 is a `hidden beast` number, since 8 + 5 + 3 + 5 + 5 + 64 + 4 + 6 + 553 + 5 + 8 = 666.

85355644655358 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85355644655357) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 231335058 + ... + 231703733.

It is an arithmetic number, because the mean of its divisors is an integer number (1715558724360).

Almost surely, 2^{85355644655358} is an apocalyptic number.

85355644655358 is an abundant number, since it is smaller than the sum of its proper divisors (161684811652482).

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

85355644655358 is a wasteful number, since it uses less digits than its factorization.

85355644655358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463038843 (or 463038833 counting only the distinct ones).

The product of its digits is 5184000000, while the sum is 72.

The spelling of 85355644655358 in words is "eighty-five trillion, three hundred fifty-five billion, six hundred forty-four million, six hundred fifty-five thousand, three hundred fifty-eight".