1518066216 has 24 divisors (see below), whose sum is σ = 4111429530. Its totient is φ = 506022048.

The previous prime is 1518066203. The next prime is 1518066223. The reversal of 1518066216 is 6126608151.

1518066216 is a `hidden beast` number, since 15 + 18 + 0 + 6 + 621 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1152874116 + 365192100 = 33954^2 + 19110^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10542055 + ... + 10542198.

Almost surely, 2^1518066216 is an apocalyptic number.

It is an amenable number.

1518066216 is an abundant number, since it is smaller than the sum of its proper divisors (2593363314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1518066216 is a wasteful number, since it uses less digits than its factorization.

1518066216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21084265 (or 21084258 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1518066216 is about 38962.3692298094. The cubic root of 1518066216 is about 1149.2916156563.

The spelling of 1518066216 in words is "one billion, five hundred eighteen million, sixty-six thousand, two hundred sixteen".