20551310467 has 8 divisors (see below), whose sum is σ = 20844546912. Its totient is φ = 20258179200.

The previous prime is 20551310453. The next prime is 20551310471. The reversal of 20551310467 is 76401315502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20551310467 - 2²³ = 20542921859 is a prime.

It is a super-2 number, since 2×20551310467² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20551310447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421117 + ... + 467377.

It is an arithmetic number, because the mean of its divisors is an integer number (2605568364).

Almost surely, 2^20551310467 is an apocalyptic number.

20551310467 is a deficient number, since it is larger than the sum of its proper divisors (293236445).

20551310467 is an equidigital number, since it uses as much as digits as its factorization.

20551310467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52589.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 20551310467 its reverse (76401315502), we get a palindrome (96952625969).

The spelling of 20551310467 in words is "twenty billion, five hundred fifty-one million, three hundred ten thousand, four hundred sixty-seven".