20366322677 has 8 divisors (see below), whose sum is σ = 21566007000. Its totient is φ = 19166823424.

The previous prime is 20366322653. The next prime is 20366322679. The reversal of 20366322677 is 77622366302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5916840241 + 14449482436 = 76921^2 + 120206^2 .

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 20366322677 - 2¹⁴ = 20366306293 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 (20366322679) 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, 226199 + ... + 303147.

It is an arithmetic number, because the mean of its divisors is an integer number (2695750875).

Almost surely, 2^20366322677 is an apocalyptic number.

It is an amenable number.

20366322677 is a deficient number, since it is larger than the sum of its proper divisors (1199684323).

20366322677 is a wasteful number, since it uses less digits than its factorization.

20366322677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92535.

The product of its (nonzero) digits is 762048, while the sum is 44.

Adding to 20366322677 its reverse (77622366302), we get a palindrome (97988688979).

The spelling of 20366322677 in words is "twenty billion, three hundred sixty-six million, three hundred twenty-two thousand, six hundred seventy-seven".