1516616516 has 24 divisors (see below), whose sum is σ = 2704322880. Its totient is φ = 744055200.

The previous prime is 1516616501. The next prime is 1516616531. The reversal of 1516616516 is 6156166151.

It is an interprime number because it is at equal distance from previous prime (1516616501) and next prime (1516616531).

It is a self number, because there is not a number n which added to its sum of digits gives 1516616516.

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, 47270 + ... + 72578.

It is an arithmetic number, because the mean of its divisors is an integer number (112680120).

Almost surely, 2^1516616516 is an apocalyptic number.

It is an amenable number.

1516616516 is a deficient number, since it is larger than the sum of its proper divisors (1187706364).

1516616516 is a wasteful number, since it uses less digits than its factorization.

1516616516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25595 (or 25593 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 1516616516 is about 38943.7609380501. The cubic root of 1516616516 is about 1148.9256547420.

The spelling of 1516616516 in words is "one billion, five hundred sixteen million, six hundred sixteen thousand, five hundred sixteen".