109856599641 has 6 divisors (see below), whose sum is σ = 158681755050. Its totient is φ = 73237733088.

The previous prime is 109856599627. The next prime is 109856599673. The reversal of 109856599641 is 146995658901.

109856599641 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 565 + 9 + 9 + 64 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57358334016 + 52498265625 = 239496^2 + 229125^2 .

It is not a de Polignac number, because 109856599641 - 2⁵ = 109856599609 is a prime.

It is a super-2 number, since 2×109856599641² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109856599141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6103144416 + ... + 6103144433.

It is an arithmetic number, because the mean of its divisors is an integer number (26446959175).

Almost surely, 2^109856599641 is an apocalyptic number.

It is an amenable number.

109856599641 is a deficient number, since it is larger than the sum of its proper divisors (48825155409).

109856599641 is a wasteful number, since it uses less digits than its factorization.

109856599641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206288855 (or 12206288852 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 109856599641 in words is "one hundred nine billion, eight hundred fifty-six million, five hundred ninety-nine thousand, six hundred forty-one".