663107445 has 192 divisors, whose sum is σ = 1613364480. Its totient is φ = 254016000.

The previous prime is 663107407. The next prime is 663107477. The reversal of 663107445 is 544701366.

It is a happy number.

It is not a de Polignac number, because 663107445 - 2⁷ = 663107317 is a prime.

It is a super-2 number, since 2×663107445² = 879422967228856050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 945595 + ... + 946295.

It is an arithmetic number, because the mean of its divisors is an integer number (8402940).

Almost surely, 2^663107445 is an apocalyptic number.

663107445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

663107445 is an abundant number, since it is smaller than the sum of its proper divisors (950257035).

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

663107445 is a wasteful number, since it uses less digits than its factorization.

663107445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 663107445 is about 25750.8727036580. The cubic root of 663107445 is about 872.0230566000.

The spelling of 663107445 in words is "six hundred sixty-three million, one hundred seven thousand, four hundred forty-five".