2061216142 has 8 divisors (see below), whose sum is σ = 3092502096. Its totient is φ = 1030382112.

The previous prime is 2061216043. The next prime is 2061216191. The reversal of 2061216142 is 2416121602.

It is a happy number.

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

It is a super-2 number, since 2×2061216142² = 8497223968082728328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101338 + ... + 119965.

It is an arithmetic number, because the mean of its divisors is an integer number (386562762).

Almost surely, 2^2061216142 is an apocalyptic number.

2061216142 is a deficient number, since it is larger than the sum of its proper divisors (1031285954).

2061216142 is a wasteful number, since it uses less digits than its factorization.

2061216142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225962.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2061216142 is about 45400.6182997545. The cubic root of 2061216142 is about 1272.6466685196.

Adding to 2061216142 its reverse (2416121602), we get a palindrome (4477337744).

The spelling of 2061216142 in words is "two billion, sixty-one million, two hundred sixteen thousand, one hundred forty-two".