10066661020 has 48 divisors (see below), whose sum is σ = 22911241248. Its totient is φ = 3693231360.

The previous prime is 10066661009. The next prime is 10066661029. The reversal of 10066661020 is 2016666001.

It is a self number, because there is not a number n which added to its sum of digits gives 10066661020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10066661029) 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 15 ways as a sum of consecutive naturals, for example, 82486 + ... + 164125.

It is an arithmetic number, because the mean of its divisors is an integer number (477317526).

Almost surely, 2^10066661020 is an apocalyptic number.

10066661020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10066661020 is an abundant number, since it is smaller than the sum of its proper divisors (12844580228).

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

10066661020 is a wasteful number, since it uses less digits than its factorization.

10066661020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246790 (or 246788 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 10066661020 in words is "ten billion, sixty-six million, six hundred sixty-one thousand, twenty".