20466340216 has 32 divisors (see below), whose sum is σ = 43878687840. Its totient is φ = 8766839808.

The previous prime is 20466340207. The next prime is 20466340229. The reversal of 20466340216 is 61204366402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19920 + ... + 203296.

It is an arithmetic number, because the mean of its divisors is an integer number (1371208995).

Almost surely, 2^20466340216 is an apocalyptic number.

It is an amenable number.

20466340216 is an abundant number, since it is smaller than the sum of its proper divisors (23412347624).

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

20466340216 is a wasteful number, since it uses less digits than its factorization.

20466340216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185383 (or 185379 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 20466340216 in words is "twenty billion, four hundred sixty-six million, three hundred forty thousand, two hundred sixteen".