20220777067 has 4 divisors (see below), whose sum is σ = 20505576816. Its totient is φ = 19935977320.

The previous prime is 20220776993. The next prime is 20220777079. The reversal of 20220777067 is 76077702202.

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 20220777067 - 2¹¹ = 20220775019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220777767) 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, 142399768 + ... + 142399909.

It is an arithmetic number, because the mean of its divisors is an integer number (5126394204).

Almost surely, 2^20220777067 is an apocalyptic number.

20220777067 is a deficient number, since it is larger than the sum of its proper divisors (284799749).

20220777067 is an equidigital number, since it uses as much as digits as its factorization.

20220777067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284799748.

The product of its (nonzero) digits is 115248, while the sum is 40.

The spelling of 20220777067 in words is "twenty billion, two hundred twenty million, seven hundred seventy-seven thousand, sixty-seven".