75106660 has 12 divisors (see below), whose sum is σ = 157724028. Its totient is φ = 30042656.

The previous prime is 75106631. The next prime is 75106667. The reversal of 75106660 is 6660157.

It can be written as a sum of positive squares in 2 ways, for example, as 58247424 + 16859236 = 7632^2 + 4106^2 .

It is not an unprimeable number, because it can be changed into a prime (75106667) 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 3 ways as a sum of consecutive naturals, for example, 1877647 + ... + 1877686.

It is an arithmetic number, because the mean of its divisors is an integer number (13143669).

Almost surely, 2^75106660 is an apocalyptic number.

It is an amenable number.

75106660 is an abundant number, since it is smaller than the sum of its proper divisors (82617368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75106660 is a wasteful number, since it uses less digits than its factorization.

75106660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755342 (or 3755340 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 75106660 is about 8666.4098679903. The cubic root of 75106660 is about 421.9161502430.

The spelling of 75106660 in words is "seventy-five million, one hundred six thousand, six hundred sixty".