1663626132 has 36 divisors (see below), whose sum is σ = 4806031776. Its totient is φ = 475321680.

The previous prime is 1663626121. The next prime is 1663626157. The reversal of 1663626132 is 2316263661.

1663626132 is a `hidden beast` number, since 1 + 6 + 6 + 36 + 2 + 613 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3300594 + ... + 3301097.

Almost surely, 2^1663626132 is an apocalyptic number.

1663626132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1663626132 is an abundant number, since it is smaller than the sum of its proper divisors (3142405644).

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

1663626132 is a wasteful number, since it uses less digits than its factorization.

1663626132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601708 (or 6601703 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 1663626132 is about 40787.5732546078. The cubic root of 1663626132 is about 1184.9096721193.

Adding to 1663626132 its reverse (2316263661), we get a palindrome (3979889793).

The spelling of 1663626132 in words is "one billion, six hundred sixty-three million, six hundred twenty-six thousand, one hundred thirty-two".