521224001166 has 32 divisors (see below), whose sum is σ = 1138469954688. Its totient is φ = 157772507040.

The previous prime is 521224001153. The next prime is 521224001183. The reversal of 521224001166 is 661100422125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4293685 + ... + 4413408.

It is an arithmetic number, because the mean of its divisors is an integer number (35577186084).

Almost surely, 2^521224001166 is an apocalyptic number.

521224001166 is an abundant number, since it is smaller than the sum of its proper divisors (617245953522).

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

521224001166 is a wasteful number, since it uses less digits than its factorization.

521224001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708016.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 521224001166 in words is "five hundred twenty-one billion, two hundred twenty-four million, one thousand, one hundred sixty-six".