1506061666 has 8 divisors (see below), whose sum is σ = 2357313984. Its totient is φ = 720290340.

The previous prime is 1506061639. The next prime is 1506061681. The reversal of 1506061666 is 6661606051.

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

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, 16370190 + ... + 16370281.

It is an arithmetic number, because the mean of its divisors is an integer number (294664248).

Almost surely, 2^1506061666 is an apocalyptic number.

1506061666 is a deficient number, since it is larger than the sum of its proper divisors (851252318).

1506061666 is a wasteful number, since it uses less digits than its factorization.

1506061666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32740496.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1506061666 is about 38808.0103329197. The cubic root of 1506061666 is about 1146.2541424224.

The spelling of 1506061666 in words is "one billion, five hundred six million, sixty-one thousand, six hundred sixty-six".