632061666 has 96 divisors (see below), whose sum is σ = 1562416128. Its totient is φ = 183490560.

The previous prime is 632061653. The next prime is 632061673. The reversal of 632061666 is 666160236.

It is a self number, because there is not a number n which added to its sum of digits gives 632061666.

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 47 ways as a sum of consecutive naturals, for example, 216730 + ... + 219626.

It is an arithmetic number, because the mean of its divisors is an integer number (16275168).

Almost surely, 2^632061666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632061666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781208064).

632061666 is an abundant number, since it is smaller than the sum of its proper divisors (930354462).

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

632061666 is a wasteful number, since it uses less digits than its factorization.

632061666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976 (or 2973 counting only the distinct ones).

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

The square root of 632061666 is about 25140.8366209241. The cubic root of 632061666 is about 858.1959957808.

The spelling of 632061666 in words is "six hundred thirty-two million, sixty-one thousand, six hundred sixty-six".