7520166066 has 64 divisors (see below), whose sum is σ = 18880358400. Its totient is φ = 1947027456.

The previous prime is 7520166023. The next prime is 7520166067. The reversal of 7520166066 is 6606610257.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7520166067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186511 + ... + 223218.

It is an arithmetic number, because the mean of its divisors is an integer number (295005600).

Almost surely, 2^7520166066 is an apocalyptic number.

7520166066 is an abundant number, since it is smaller than the sum of its proper divisors (11360192334).

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

7520166066 is a wasteful number, since it uses less digits than its factorization.

7520166066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409783.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 7520166066 is about 86718.8910561015. The cubic root of 7520166066 is about 1959.1866389514.

The spelling of 7520166066 in words is "seven billion, five hundred twenty million, one hundred sixty-six thousand, sixty-six".