1663802652 has 24 divisors (see below), whose sum is σ = 3884702976. Its totient is φ = 554244208.

The previous prime is 1663802639. The next prime is 1663802653. The reversal of 1663802652 is 2562083661.

1663802652 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1663802652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663802653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24798 + ... + 62789.

It is an arithmetic number, because the mean of its divisors is an integer number (161862624).

Almost surely, 2^1663802652 is an apocalyptic number.

1663802652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1663802652 is an abundant number, since it is smaller than the sum of its proper divisors (2220900324).

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

1663802652 is a wasteful number, since it uses less digits than its factorization.

1663802652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89177 (or 89175 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1663802652 is about 40789.7370915773. The cubic root of 1663802652 is about 1184.9515791427.

The spelling of 1663802652 in words is "one billion, six hundred sixty-three million, eight hundred two thousand, six hundred fifty-two".