20006653343 has 4 divisors (see below), whose sum is σ = 20139147888. Its totient is φ = 19874158800.

The previous prime is 20006653333. The next prime is 20006653349. The reversal of 20006653343 is 34335660002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20006653343 - 2²² = 20002459039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006653349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66247046 + ... + 66247347.

It is an arithmetic number, because the mean of its divisors is an integer number (5034786972).

Almost surely, 2^20006653343 is an apocalyptic number.

20006653343 is a deficient number, since it is larger than the sum of its proper divisors (132494545).

20006653343 is a wasteful number, since it uses less digits than its factorization.

20006653343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132494544.

The product of its (nonzero) digits is 38880, while the sum is 32.

The spelling of 20006653343 in words is "twenty billion, six million, six hundred fifty-three thousand, three hundred forty-three".