66101822 has 8 divisors (see below), whose sum is σ = 99191736. Its totient is φ = 33037912.

The previous prime is 66101809. The next prime is 66101837. The reversal of 66101822 is 22810166.

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

It is a junction number, because it is equal to n+sod(n) for n = 66101791 and 66101800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168 + ... + 11700.

It is an arithmetic number, because the mean of its divisors is an integer number (12398967).

Almost surely, 2^66101822 is an apocalyptic number.

66101822 is a deficient number, since it is larger than the sum of its proper divisors (33089914).

66101822 is a wasteful number, since it uses less digits than its factorization.

66101822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13002.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 66101822 is about 8130.3027003919. The cubic root of 66101822 is about 404.3317170694.

Adding to 66101822 its reverse (22810166), we get a palindrome (88911988).

The spelling of 66101822 in words is "sixty-six million, one hundred one thousand, eight hundred twenty-two".