101506666 has 8 divisors (see below), whose sum is σ = 152412480. Its totient is φ = 50702508.

The previous prime is 101506663. The next prime is 101506667. The reversal of 101506666 is 666605101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (101506663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22866 + ... + 26941.

It is an arithmetic number, because the mean of its divisors is an integer number (19051560).

Almost surely, 2^101506666 is an apocalyptic number.

101506666 is a deficient number, since it is larger than the sum of its proper divisors (50905814).

101506666 is a wasteful number, since it uses less digits than its factorization.

101506666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50828.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 101506666 is about 10075.0516623986. The cubic root of 101506666 is about 466.4783810723.

The spelling of 101506666 in words is "one hundred one million, five hundred six thousand, six hundred sixty-six".