100665166106650 has 24 divisors (see below), whose sum is σ = 187548751791324. Its totient is φ = 40199067984000.

The previous prime is 100665166106569. The next prime is 100665166106651. The reversal of 100665166106650 is 56601661566001.

It can be written as a sum of positive squares in 6 ways, for example, as 58696574954161 + 41968591152489 = 7661369^2 + 6478317^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100665166106594 and 100665166106603.

It is not an unprimeable number, because it can be changed into a prime (100665166106651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1674931117 + ... + 1674991216.

Almost surely, 2^{100665166106650} is an apocalyptic number.

100665166106650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100665166106650 is a deficient number, since it is larger than the sum of its proper divisors (86883585684674).

100665166106650 is a wasteful number, since it uses less digits than its factorization.

100665166106650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349922946 (or 3349922941 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 100665166106650 in words is "one hundred trillion, six hundred sixty-five billion, one hundred sixty-six million, one hundred six thousand, six hundred fifty".