20223186377 has 2 divisors, whose sum is σ = 20223186378. Its totient is φ = 20223186376.

The previous prime is 20223186359. The next prime is 20223186407. The reversal of 20223186377 is 77368132202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19686615481 + 536570896 = 140309^2 + 23164^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223186377 - 2³² = 15928219081 is a prime.

It is a super-2 number, since 2×20223186377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20223156377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111593188 + 10111593189.

It is an arithmetic number, because the mean of its divisors is an integer number (10111593189).

Almost surely, 2^20223186377 is an apocalyptic number.

It is an amenable number.

20223186377 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223186377 is an equidigital number, since it uses as much as digits as its factorization.

20223186377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 20223186377 in words is "twenty billion, two hundred twenty-three million, one hundred eighty-six thousand, three hundred seventy-seven".