605697561401856 has 640 divisors, whose sum is σ = 2038158109532160. Its totient is φ = 155263116902400.

The previous prime is 605697561401827. The next prime is 605697561401873. The reversal of 605697561401856 is 658104165796506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22807440930 + ... + 22807467486.

It is an arithmetic number, because the mean of its divisors is an integer number (3184622046144).

Almost surely, 2^{605697561401856} is an apocalyptic number.

605697561401856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 605697561401856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019079054766080).

605697561401856 is an abundant number, since it is smaller than the sum of its proper divisors (1432460548130304).

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

605697561401856 is a wasteful number, since it uses less digits than its factorization.

605697561401856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29116 (or 29100 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 69.

The spelling of 605697561401856 in words is "six hundred five trillion, six hundred ninety-seven billion, five hundred sixty-one million, four hundred one thousand, eight hundred fifty-six".