9125811066 has 16 divisors (see below), whose sum is σ = 18253066464. Its totient is φ = 3041696304.

The previous prime is 9125811061. The next prime is 9125811127. The reversal of 9125811066 is 6601185219.

It is a super-2 number, since 2×9125811066² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9125811061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33076 + ... + 139088.

It is an arithmetic number, because the mean of its divisors is an integer number (1140816654).

Almost surely, 2^9125811066 is an apocalyptic number.

9125811066 is an abundant number, since it is smaller than the sum of its proper divisors (9127255398).

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

9125811066 is a wasteful number, since it uses less digits than its factorization.

9125811066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120365.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 9125811066 is about 95529.1110918551. Note that the first 3 decimals coincide. The cubic root of 9125811066 is about 2089.7315090490.

The spelling of 9125811066 in words is "nine billion, one hundred twenty-five million, eight hundred eleven thousand, sixty-six".