1665055652 has 96 divisors (see below), whose sum is σ = 3522355200. Its totient is φ = 681132672.

The previous prime is 1665055621. The next prime is 1665055657. The reversal of 1665055652 is 2565505661.

It is not an unprimeable number, because it can be changed into a prime (1665055657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067249 + ... + 1068807.

It is an arithmetic number, because the mean of its divisors is an integer number (36691200).

Almost surely, 2^1665055652 is an apocalyptic number.

It is an amenable number.

1665055652 is an abundant number, since it is smaller than the sum of its proper divisors (1857299548).

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

1665055652 is a wasteful number, since it uses less digits than its factorization.

1665055652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 1665055652 is about 40805.0934565772. The cubic root of 1665055652 is about 1185.2489645258.

The spelling of 1665055652 in words is "one billion, six hundred sixty-five million, fifty-five thousand, six hundred fifty-two".