164625300397 has 2 divisors, whose sum is σ = 164625300398. Its totient is φ = 164625300396.

The previous prime is 164625300341. The next prime is 164625300407. The reversal of 164625300397 is 793003526461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157772606436 + 6852693961 = 397206^2 + 82781^2 .

It is an emirp because it is prime and its reverse (793003526461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164625300397 - 2⁷ = 164625300269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164625301397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82312650198 + 82312650199.

It is an arithmetic number, because the mean of its divisors is an integer number (82312650199).

Almost surely, 2^164625300397 is an apocalyptic number.

It is an amenable number.

164625300397 is a deficient number, since it is larger than the sum of its proper divisors (1).

164625300397 is an equidigital number, since it uses as much as digits as its factorization.

164625300397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 164625300397 in words is "one hundred sixty-four billion, six hundred twenty-five million, three hundred thousand, three hundred ninety-seven".