75640166 has 32 divisors (see below), whose sum is σ = 132148800. Its totient is φ = 31804416.

The previous prime is 75640163. The next prime is 75640171. The reversal of 75640166 is 66104657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75640163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216560 + ... + 216908.

It is an arithmetic number, because the mean of its divisors is an integer number (4129650).

Almost surely, 2^75640166 is an apocalyptic number.

75640166 is a deficient number, since it is larger than the sum of its proper divisors (56508634).

75640166 is a wasteful number, since it uses less digits than its factorization.

75640166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 75640166 is about 8697.1355054409. The cubic root of 75640166 is about 422.9127947402.

The spelling of 75640166 in words is "seventy-five million, six hundred forty thousand, one hundred sixty-six".