1616516 has 12 divisors (see below), whose sum is σ = 3086160. Its totient is φ = 734760.

The previous prime is 1616497. The next prime is 1616519. The reversal of 1616516 is 6156161.

It is a super-2 number, since 2×1616516² = 5226247956512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18326 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (257180).

2^1616516 is an apocalyptic number.

It is an amenable number.

1616516 is a deficient number, since it is larger than the sum of its proper divisors (1469644).

1616516 is a wasteful number, since it uses less digits than its factorization.

1616516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36754 (or 36752 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 1616516 is about 1271.4228250271. The cubic root of 1616516 is about 117.3617749865.

It can be divided in two parts, 161 and 6516, that multiplied together give a triangular number (1049076 = T₁₄₄₈).

The spelling of 1616516 in words is "one million, six hundred sixteen thousand, five hundred sixteen".