20667343200 has 144 divisors (see below), whose sum is σ = 76882579200. Its totient is φ = 4723960320.

The previous prime is 20667343199. The next prime is 20667343201. The reversal of 20667343200 is 234376602.

It is an interprime number because it is at equal distance from previous prime (20667343199) and next prime (20667343201).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20667343201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598300 + ... + 631899.

It is an arithmetic number, because the mean of its divisors is an integer number (533906800).

Almost surely, 2^20667343200 is an apocalyptic number.

20667343200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20667343200 is an abundant number, since it is smaller than the sum of its proper divisors (56215236000).

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

20667343200 is a wasteful number, since it uses less digits than its factorization.

20667343200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230229 (or 1230216 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The spelling of 20667343200 in words is "twenty billion, six hundred sixty-seven million, three hundred forty-three thousand, two hundred".