20824166668 has 24 divisors (see below), whose sum is σ = 38740126320. Its totient is φ = 9766411200.

The previous prime is 20824166617. The next prime is 20824166747. The reversal of 20824166668 is 86666142802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348771 + ... + 1364122.

It is an arithmetic number, because the mean of its divisors is an integer number (1614171930).

Almost surely, 2^20824166668 is an apocalyptic number.

It is an amenable number.

20824166668 is a deficient number, since it is larger than the sum of its proper divisors (17915959652).

20824166668 is a wasteful number, since it uses less digits than its factorization.

20824166668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713017 (or 2713015 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 20824166668 in words is "twenty billion, eight hundred twenty-four million, one hundred sixty-six thousand, six hundred sixty-eight".