1616222085 has 16 divisors (see below), whose sum is σ = 2588972544. Its totient is φ = 860979392.

The previous prime is 1616222071. The next prime is 1616222089. The reversal of 1616222085 is 5802226161.

It is a cyclic number.

It is not a de Polignac number, because 1616222085 - 2⁸ = 1616221829 is a prime.

It is a super-2 number, since 2×1616222085² = 5224347656083494450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616222089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49482 + ... + 75371.

It is an arithmetic number, because the mean of its divisors is an integer number (161810784).

Almost surely, 2^1616222085 is an apocalyptic number.

1616222085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1616222085 is a deficient number, since it is larger than the sum of its proper divisors (972750459).

1616222085 is a wasteful number, since it uses less digits than its factorization.

1616222085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125724.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1616222085 is about 40202.2646750155. The cubic root of 1616222085 is about 1173.5466164790.

The spelling of 1616222085 in words is "one billion, six hundred sixteen million, two hundred twenty-two thousand, eighty-five".