845608581105 has 32 divisors (see below), whose sum is σ = 1424236707840. Its totient is φ = 427238712000.

The previous prime is 845608581101. The next prime is 845608581107. The reversal of 845608581105 is 501185806548.

It is not a de Polignac number, because 845608581105 - 2² = 845608581101 is a prime.

It is a super-2 number, since 2×845608581105² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (845608581101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12149334 + ... + 12218736.

It is an arithmetic number, because the mean of its divisors is an integer number (44507397120).

Almost surely, 2^845608581105 is an apocalyptic number.

It is an amenable number.

845608581105 is a deficient number, since it is larger than the sum of its proper divisors (578628126735).

845608581105 is a wasteful number, since it uses less digits than its factorization.

845608581105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112181.

The product of its (nonzero) digits is 1536000, while the sum is 51.

The spelling of 845608581105 in words is "eight hundred forty-five billion, six hundred eight million, five hundred eighty-one thousand, one hundred five".