855740323047558 has 96 divisors (see below), whose sum is σ = 1905874276478976. Its totient is φ = 255922337883264.

The previous prime is 855740323047553. The next prime is 855740323047569.

855740323047558 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 (855740323047553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68656710 + ... + 80157497.

It is an arithmetic number, because the mean of its divisors is an integer number (19852857046656).

Almost surely, 2^{855740323047558} is an apocalyptic number.

855740323047558 is an abundant number, since it is smaller than the sum of its proper divisors (1050133953431418).

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

855740323047558 is a wasteful number, since it uses less digits than its factorization.

855740323047558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148814398 (or 148814385 counting only the distinct ones).

The product of its (nonzero) digits is 564480000, while the sum is 66.

The spelling of 855740323047558 in words is "eight hundred fifty-five trillion, seven hundred forty billion, three hundred twenty-three million, forty-seven thousand, five hundred fifty-eight".