66120026 has 16 divisors (see below), whose sum is σ = 114451584. Its totient is φ = 28061424.

The previous prime is 66120017. The next prime is 66120059. The reversal of 66120026 is 62002166.

It is a junction number, because it is equal to n+sod(n) for n = 66119983 and 66120010.

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, 21485 + ... + 24368.

It is an arithmetic number, because the mean of its divisors is an integer number (7153224).

Almost surely, 2^66120026 is an apocalyptic number.

66120026 is a deficient number, since it is larger than the sum of its proper divisors (48331558).

66120026 is a wasteful number, since it uses less digits than its factorization.

66120026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45965.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66120026 is about 8131.4221388389. The cubic root of 66120026 is about 404.3688304136.

The spelling of 66120026 in words is "sixty-six million, one hundred twenty thousand, twenty-six".