855370546563 has 16 divisors (see below), whose sum is σ = 1239492494240. Its totient is φ = 521552680704.

The previous prime is 855370546559. The next prime is 855370546571. The reversal of 855370546563 is 365645073558.

It is a happy number.

It is not a de Polignac number, because 855370546563 - 2² = 855370546559 is a prime.

It is a super-2 number, since 2×855370546563² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855370546553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100603906 + ... + 100612407.

It is an arithmetic number, because the mean of its divisors is an integer number (77468280890).

Almost surely, 2^855370546563 is an apocalyptic number.

855370546563 is a deficient number, since it is larger than the sum of its proper divisors (384121947677).

855370546563 is a wasteful number, since it uses less digits than its factorization.

855370546563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201216438.

The product of its (nonzero) digits is 45360000, while the sum is 57.

The spelling of 855370546563 in words is "eight hundred fifty-five billion, three hundred seventy million, five hundred forty-six thousand, five hundred sixty-three".