101666612 has 12 divisors (see below), whose sum is σ = 177996420. Its totient is φ = 50810496.

The previous prime is 101666603. The next prime is 101666623. The reversal of 101666612 is 216666101.

It can be written as a sum of positive squares in 2 ways, for example, as 80174116 + 21492496 = 8954^2 + 4636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7964 + ... + 16332.

It is an arithmetic number, because the mean of its divisors is an integer number (14833035).

Almost surely, 2^101666612 is an apocalyptic number.

It is an amenable number.

101666612 is a deficient number, since it is larger than the sum of its proper divisors (76329808).

101666612 is a wasteful number, since it uses less digits than its factorization.

101666612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11410 (or 11408 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 101666612 is about 10082.9862639994. The cubic root of 101666612 is about 466.7232654708.

The spelling of 101666612 in words is "one hundred one million, six hundred sixty-six thousand, six hundred twelve".