100661104 has 10 divisors (see below), whose sum is σ = 195030920. Its totient is φ = 50330544.

The previous prime is 100661101. The next prime is 100661111. The reversal of 100661104 is 401166001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100661101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3145644 + ... + 3145675.

It is an arithmetic number, because the mean of its divisors is an integer number (19503092).

Almost surely, 2^100661104 is an apocalyptic number.

It is an amenable number.

100661104 is a deficient number, since it is larger than the sum of its proper divisors (94369816).

100661104 is an equidigital number, since it uses as much as digits as its factorization.

100661104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291327 (or 6291321 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 100661104 is about 10033.0007475331. Note that the first 3 decimals coincide. The cubic root of 100661104 is about 465.1794952008.

The spelling of 100661104 in words is "one hundred million, six hundred sixty-one thousand, one hundred four".