164012911277 has 4 divisors (see below), whose sum is σ = 164075205180. Its totient is φ = 163950617376.

The previous prime is 164012911273. The next prime is 164012911303. The reversal of 164012911277 is 772119210461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22821842761 + 141191068516 = 151069^2 + 375754^2 .

It is a cyclic number.

It is not a de Polignac number, because 164012911277 - 2² = 164012911273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164012911273) 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, 31143002 + ... + 31148267.

It is an arithmetic number, because the mean of its divisors is an integer number (41018801295).

Almost surely, 2^164012911277 is an apocalyptic number.

It is an amenable number.

164012911277 is a deficient number, since it is larger than the sum of its proper divisors (62293903).

164012911277 is an equidigital number, since it uses as much as digits as its factorization.

164012911277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62293902.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 164012911277 in words is "one hundred sixty-four billion, twelve million, nine hundred eleven thousand, two hundred seventy-seven".