663572101 has 8 divisors (see below), whose sum is σ = 702946944. Its totient is φ = 624235200.

The previous prime is 663572099. The next prime is 663572111. The reversal of 663572101 is 101275366.

663572101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663572101 - 2¹ = 663572099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663572111) 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, 31666 + ... + 48268.

It is an arithmetic number, because the mean of its divisors is an integer number (87868368).

Almost surely, 2^663572101 is an apocalyptic number.

It is an amenable number.

663572101 is a deficient number, since it is larger than the sum of its proper divisors (39374843).

663572101 is a wasteful number, since it uses less digits than its factorization.

663572101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18971.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 663572101 is about 25759.8932645304. The cubic root of 663572101 is about 872.2266918444.

The spelling of 663572101 in words is "six hundred sixty-three million, five hundred seventy-two thousand, one hundred one".