38551564201 has 2 divisors, whose sum is σ = 38551564202. Its totient is φ = 38551564200.

The previous prime is 38551564199. The next prime is 38551564211. The reversal of 38551564201 is 10246515583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28459352601 + 10092211600 = 168699^2 + 100460^2 .

It is an emirp because it is prime and its reverse (10246515583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38551564201 - 2¹ = 38551564199 is a prime.

Together with 38551564199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38551564211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19275782100 + 19275782101.

It is an arithmetic number, because the mean of its divisors is an integer number (19275782101).

Almost surely, 2^38551564201 is an apocalyptic number.

It is an amenable number.

38551564201 is a deficient number, since it is larger than the sum of its proper divisors (1).

38551564201 is an equidigital number, since it uses as much as digits as its factorization.

38551564201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 38551564201 in words is "thirty-eight billion, five hundred fifty-one million, five hundred sixty-four thousand, two hundred one".