20567340216 has 24 divisors (see below), whose sum is σ = 55703213280. Its totient is φ = 6855780048.

The previous prime is 20567340181. The next prime is 20567340217. The reversal of 20567340216 is 61204376502.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20567340217) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 142828680 + ... + 142828823.

It is an arithmetic number, because the mean of its divisors is an integer number (2320967220).

Almost surely, 2^20567340216 is an apocalyptic number.

It is an amenable number.

20567340216 is an abundant number, since it is smaller than the sum of its proper divisors (35135873064).

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

20567340216 is a wasteful number, since it uses less digits than its factorization.

20567340216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285657515 (or 285657508 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 20567340216 in words is "twenty billion, five hundred sixty-seven million, three hundred forty thousand, two hundred sixteen".