20270066 has 16 divisors (see below), whose sum is σ = 31242240. Its totient is φ = 9858720.

The previous prime is 20270059. The next prime is 20270077. The reversal of 20270066 is 66007202.

It is a happy number.

It is a Curzon 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, 17390 + ... + 18518.

It is an arithmetic number, because the mean of its divisors is an integer number (1952640).

Almost surely, 2^20270066 is an apocalyptic number.

20270066 is a deficient number, since it is larger than the sum of its proper divisors (10972174).

20270066 is a wasteful number, since it uses less digits than its factorization.

20270066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20270066 is about 4502.2290035048. The cubic root of 20270066 is about 272.6580896773.

Adding to 20270066 its reverse (66007202), we get a palindrome (86277268).

The spelling of 20270066 in words is "twenty million, two hundred seventy thousand, sixty-six".