662725614164 has 18 divisors (see below), whose sum is σ = 1165687138350. Its totient is φ = 329680685152.

The previous prime is 662725614157. The next prime is 662725614193. The reversal of 662725614164 is 461416527266.

It can be written as a sum of positive squares in 3 ways, for example, as 312548083600 + 350177530564 = 559060^2 + 591758^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1979339 + ... + 2289810.

It is an arithmetic number, because the mean of its divisors is an integer number (64760396575).

Almost surely, 2^662725614164 is an apocalyptic number.

It is an amenable number.

662725614164 is a deficient number, since it is larger than the sum of its proper divisors (502961524186).

662725614164 is a wasteful number, since it uses less digits than its factorization.

662725614164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269547 (or 4269348 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 662725614164 in words is "six hundred sixty-two billion, seven hundred twenty-five million, six hundred fourteen thousand, one hundred sixty-four".