662695120 has 20 divisors (see below), whose sum is σ = 1540766340. Its totient is φ = 265078016.

The previous prime is 662695109. The next prime is 662695127. The reversal of 662695120 is 21596266.

It can be written as a sum of positive squares in 2 ways, for example, as 434805904 + 227889216 = 20852^2 + 15096^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 662695120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662695127) 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 3 ways as a sum of consecutive naturals, for example, 4141765 + ... + 4141924.

It is an arithmetic number, because the mean of its divisors is an integer number (77038317).

Almost surely, 2^662695120 is an apocalyptic number.

It is an amenable number.

662695120 is an abundant number, since it is smaller than the sum of its proper divisors (878071220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662695120 is a wasteful number, since it uses less digits than its factorization.

662695120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283702 (or 8283696 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 662695120 is about 25742.8654193740. The cubic root of 662695120 is about 871.8422757124.

The spelling of 662695120 in words is "six hundred sixty-two million, six hundred ninety-five thousand, one hundred twenty".