654171162164 has 24 divisors (see below), whose sum is σ = 1233165918600. Its totient is φ = 301850486784.

The previous prime is 654171162121. The next prime is 654171162167. The reversal of 654171162164 is 461261171456.

It can be written as a sum of positive squares in 4 ways, for example, as 5469785764 + 648701376400 = 73958^2 + 805420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654171162167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342949 + ... + 1764044.

It is an arithmetic number, because the mean of its divisors is an integer number (51381913275).

Almost surely, 2^654171162164 is an apocalyptic number.

It is an amenable number.

654171162164 is a deficient number, since it is larger than the sum of its proper divisors (578994756436).

654171162164 is a wasteful number, since it uses less digits than its factorization.

654171162164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111059 (or 3111057 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 654171162164 in words is "six hundred fifty-four billion, one hundred seventy-one million, one hundred sixty-two thousand, one hundred sixty-four".