20622310087 has 4 divisors (see below), whose sum is σ = 20713157496. Its totient is φ = 20531462680.

The previous prime is 20622310081. The next prime is 20622310097. The reversal of 20622310087 is 78001322602.

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 20622310087 - 2⁷ = 20622309959 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 (20622310081) 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, 45423364 + ... + 45423817.

It is an arithmetic number, because the mean of its divisors is an integer number (5178289374).

Almost surely, 2^20622310087 is an apocalyptic number.

20622310087 is a deficient number, since it is larger than the sum of its proper divisors (90847409).

20622310087 is an equidigital number, since it uses as much as digits as its factorization.

20622310087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90847408.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 20622310087 its reverse (78001322602), we get a palindrome (98623632689).

The spelling of 20622310087 in words is "twenty billion, six hundred twenty-two million, three hundred ten thousand, eighty-seven".