20051622463 has 4 divisors (see below), whose sum is σ = 20054183688. Its totient is φ = 20049061240.

The previous prime is 20051622427. The next prime is 20051622467. The reversal of 20051622463 is 36422615002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36422615002 = 2 ⋅18211307501.

It is a cyclic number.

It is not a de Polignac number, because 20051622463 - 2²⁹ = 19514751551 is a prime.

It is a super-3 number, since 3×20051622463³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051622467) 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, 1268833 + ... + 1284538.

It is an arithmetic number, because the mean of its divisors is an integer number (5013545922).

Almost surely, 2^20051622463 is an apocalyptic number.

20051622463 is a deficient number, since it is larger than the sum of its proper divisors (2561225).

20051622463 is an equidigital number, since it uses as much as digits as its factorization.

20051622463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561224.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20051622463 in words is "twenty billion, fifty-one million, six hundred twenty-two thousand, four hundred sixty-three".