66101630 has 16 divisors (see below), whose sum is σ = 135980640. Its totient is φ = 22663392.

The previous prime is 66101617. The next prime is 66101663. The reversal of 66101630 is 3610166.

It is a junction number, because it is equal to n+sod(n) for n = 66101596 and 66101605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472085 + ... + 472224.

It is an arithmetic number, because the mean of its divisors is an integer number (8498790).

Almost surely, 2^66101630 is an apocalyptic number.

66101630 is an abundant number, since it is smaller than the sum of its proper divisors (69879010).

66101630 is a wasteful number, since it uses less digits than its factorization.

66101630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944323.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 66101630 is about 8130.2908927049. The cubic root of 66101630 is about 404.3313255938.

Adding to 66101630 its reverse (3610166), we get a palindrome (69711796).

The spelling of 66101630 in words is "sixty-six million, one hundred one thousand, six hundred thirty".