164169386257 has 16 divisors (see below), whose sum is σ = 174267624960. Its totient is φ = 154120476928.

The previous prime is 164169386197. The next prime is 164169386281. The reversal of 164169386257 is 752683961461.

It is a cyclic number.

It is not a de Polignac number, because 164169386257 - 2¹⁵ = 164169353489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164169386957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31893558 + ... + 31898704.

It is an arithmetic number, because the mean of its divisors is an integer number (10891726560).

Almost surely, 2^164169386257 is an apocalyptic number.

164169386257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164169386257 is a deficient number, since it is larger than the sum of its proper divisors (10098238703).

164169386257 is a wasteful number, since it uses less digits than its factorization.

164169386257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560.

The product of its digits is 13063680, while the sum is 58.

The spelling of 164169386257 in words is "one hundred sixty-four billion, one hundred sixty-nine million, three hundred eighty-six thousand, two hundred fifty-seven".