100661096 has 8 divisors (see below), whose sum is σ = 188739570. Its totient is φ = 50330544.

The previous prime is 100661083. The next prime is 100661101. The reversal of 100661096 is 690166001.

It can be written as a sum of positive squares in only one way, i.e., 99720196 + 940900 = 9986^2 + 970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6291311 + ... + 6291326.

Almost surely, 2^100661096 is an apocalyptic number.

It is an amenable number.

100661096 is a deficient number, since it is larger than the sum of its proper divisors (88078474).

100661096 is a wasteful number, since it uses less digits than its factorization.

100661096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12582643 (or 12582639 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 100661096 is about 10033.0003488488. Note that the first 3 decimals coincide. The cubic root of 100661096 is about 465.1794828775.

The spelling of 100661096 in words is "one hundred million, six hundred sixty-one thousand, ninety-six".