1663165524 has 24 divisors (see below), whose sum is σ = 3970970080. Its totient is φ = 541495584.

The previous prime is 1663165523. The next prime is 1663165529. The reversal of 1663165524 is 4255613661.

It is a super-2 number, since 2×1663165524² = 5532239120444389152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663165523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611079 + ... + 1612110.

Almost surely, 2^1663165524 is an apocalyptic number.

It is an amenable number.

1663165524 is an abundant number, since it is smaller than the sum of its proper divisors (2307804556).

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

1663165524 is a wasteful number, since it uses less digits than its factorization.

1663165524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223239 (or 3223237 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 1663165524 is about 40781.9264380681. The cubic root of 1663165524 is about 1184.8003067514.

The spelling of 1663165524 in words is "one billion, six hundred sixty-three million, one hundred sixty-five thousand, five hundred twenty-four".