66103632 has 60 divisors (see below), whose sum is σ = 211429920. Its totient is φ = 18886464.

The previous prime is 66103619. The next prime is 66103643. The reversal of 66103632 is 23630166.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 66103596 and 66103605.

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, 31782 + ... + 33797.

It is an arithmetic number, because the mean of its divisors is an integer number (3523832).

Almost surely, 2^66103632 is an apocalyptic number.

It is an amenable number.

66103632 is an abundant number, since it is smaller than the sum of its proper divisors (145326288).

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

66103632 is a wasteful number, since it uses less digits than its factorization.

66103632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65600 (or 65591 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 66103632 is about 8130.4140115987. The cubic root of 66103632 is about 404.3354075059.

Adding to 66103632 its reverse (23630166), we get a palindrome (89733798).

The spelling of 66103632 in words is "sixty-six million, one hundred three thousand, six hundred thirty-two".