100166065544 has 16 divisors (see below), whose sum is σ = 195977085120. Its totient is φ = 47905509520.

The previous prime is 100166065543. The next prime is 100166065577. The reversal of 100166065544 is 445560661001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100166065498 and 100166065507.

It is not an unprimeable number, because it can be changed into a prime (100166065543) 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 3 ways as a sum of consecutive naturals, for example, 272190212 + ... + 272190579.

It is an arithmetic number, because the mean of its divisors is an integer number (12248567820).

Almost surely, 2^100166065544 is an apocalyptic number.

It is an amenable number.

100166065544 is a deficient number, since it is larger than the sum of its proper divisors (95811019576).

100166065544 is a wasteful number, since it uses less digits than its factorization.

100166065544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544380820 (or 544380816 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 100166065544 in words is "one hundred billion, one hundred sixty-six million, sixty-five thousand, five hundred forty-four".