164831950577 has 4 divisors (see below), whose sum is σ = 188379372096. Its totient is φ = 141284529060.

The previous prime is 164831950499. The next prime is 164831950579. The reversal of 164831950577 is 775059138461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164831950577 - 2¹⁶ = 164831885041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164831950579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11773710749 + ... + 11773710762.

It is an arithmetic number, because the mean of its divisors is an integer number (47094843024).

Almost surely, 2^164831950577 is an apocalyptic number.

It is an amenable number.

164831950577 is a deficient number, since it is larger than the sum of its proper divisors (23547421519).

164831950577 is an equidigital number, since it uses as much as digits as its factorization.

164831950577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23547421518.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 164831950577 in words is "one hundred sixty-four billion, eight hundred thirty-one million, nine hundred fifty thousand, five hundred seventy-seven".