20632136385467 has 4 divisors (see below), whose sum is σ = 20632302444360. Its totient is φ = 20631970326576.

The previous prime is 20632136385409. The next prime is 20632136385503. The reversal of 20632136385467 is 76458363123602.

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 20632136385467 - 2²⁶ = 20632069276603 is a prime.

It is a super-2 number, since 2×20632136385467² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20632136385067) 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, 82842938 + ... + 83091615.

It is an arithmetic number, because the mean of its divisors is an integer number (5158075611090).

Almost surely, 2^{20632136385467} is an apocalyptic number.

20632136385467 is a deficient number, since it is larger than the sum of its proper divisors (166058893).

20632136385467 is a wasteful number, since it uses less digits than its factorization.

20632136385467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166058892.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 20632136385467 in words is "twenty trillion, six hundred thirty-two billion, one hundred thirty-six million, three hundred eighty-five thousand, four hundred sixty-seven".