242646220066 has 16 divisors (see below), whose sum is σ = 370081603584. Its totient is φ = 119302593984.

The previous prime is 242646220057. The next prime is 242646220121. The reversal of 242646220066 is 660022646242.

It is a happy number.

It is a super-2 number, since 2×242646220066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198290 + ... + 4255693.

It is an arithmetic number, because the mean of its divisors is an integer number (23130100224).

Almost surely, 2^242646220066 is an apocalyptic number.

242646220066 is a deficient number, since it is larger than the sum of its proper divisors (127435383518).

242646220066 is a wasteful number, since it uses less digits than its factorization.

242646220066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454225.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 242646220066 in words is "two hundred forty-two billion, six hundred forty-six million, two hundred twenty thousand, sixty-six".