20006611067 has 4 divisors (see below), whose sum is σ = 20007872640. Its totient is φ = 20005349496.

The previous prime is 20006611061. The next prime is 20006611073. The reversal of 20006611067 is 76011660002.

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

It is an interprime number because it is at equal distance from previous prime (20006611061) and next prime (20006611073).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20006611067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20006611061) 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, 606692 + ... + 638817.

It is an arithmetic number, because the mean of its divisors is an integer number (5001968160).

Almost surely, 2^20006611067 is an apocalyptic number.

20006611067 is a deficient number, since it is larger than the sum of its proper divisors (1261573).

20006611067 is a wasteful number, since it uses less digits than its factorization.

20006611067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261572.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 20006611067 in words is "twenty billion, six million, six hundred eleven thousand, sixty-seven".