660473075 has 6 divisors (see below), whose sum is σ = 818986644. Its totient is φ = 528378440.

The previous prime is 660473053. The next prime is 660473119. The reversal of 660473075 is 570374066.

It is not a de Polignac number, because 660473075 - 2¹⁰ = 660472051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13209437 + ... + 13209486.

It is an arithmetic number, because the mean of its divisors is an integer number (136497774).

Almost surely, 2^660473075 is an apocalyptic number.

660473075 is a deficient number, since it is larger than the sum of its proper divisors (158513569).

660473075 is a wasteful number, since it uses less digits than its factorization.

660473075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26418933 (or 26418928 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 660473075 is about 25699.6707177349. The cubic root of 660473075 is about 870.8667431202.

Subtracting from 660473075 its reverse (570374066), we obtain a palindrome (90099009).

The spelling of 660473075 in words is "six hundred sixty million, four hundred seventy-three thousand, seventy-five".