101166561044 has 12 divisors (see below), whose sum is σ = 177045233568. Its totient is φ = 50582208600.

The previous prime is 101166560939. The next prime is 101166561047. The reversal of 101166561044 is 440165661101.

It is a junction number, because it is equal to n+sod(n) for n = 101166560995 and 101166561013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101166561047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32672 + ... + 450999.

It is an arithmetic number, because the mean of its divisors is an integer number (14753769464).

Almost surely, 2^101166561044 is an apocalyptic number.

It is an amenable number.

101166561044 is a deficient number, since it is larger than the sum of its proper divisors (75878672524).

101166561044 is a wasteful number, since it uses less digits than its factorization.

101166561044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535966 (or 535964 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 101166561044 in words is "one hundred one billion, one hundred sixty-six million, five hundred sixty-one thousand, forty-four".