164231504551 has 2 divisors, whose sum is σ = 164231504552. Its totient is φ = 164231504550.

The previous prime is 164231504537. The next prime is 164231504603. The reversal of 164231504551 is 155405132461.

It is a weak prime.

It is an emirp because it is prime and its reverse (155405132461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164231504551 - 2¹⁷ = 164231373479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164231504551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164231504051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82115752275 + 82115752276.

It is an arithmetic number, because the mean of its divisors is an integer number (82115752276).

Almost surely, 2^164231504551 is an apocalyptic number.

164231504551 is a deficient number, since it is larger than the sum of its proper divisors (1).

164231504551 is an equidigital number, since it uses as much as digits as its factorization.

164231504551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 164231504551 in words is "one hundred sixty-four billion, two hundred thirty-one million, five hundred four thousand, five hundred fifty-one".