1518225216 has 56 divisors (see below), whose sum is σ = 4191633984. Its totient is φ = 484070400.

The previous prime is 1518225169. The next prime is 1518225263. The reversal of 1518225216 is 6125228151.

It is an interprime number because it is at equal distance from previous prime (1518225169) and next prime (1518225263).

It is a congruent number.

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, 167485 + ... + 176316.

Almost surely, 2^1518225216 is an apocalyptic number.

1518225216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1518225216 is an abundant number, since it is smaller than the sum of its proper divisors (2673408768).

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

1518225216 is a wasteful number, since it uses less digits than its factorization.

1518225216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343839 (or 343829 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 1518225216 is about 38964.4096067167. The cubic root of 1518225216 is about 1149.3317392876.

The spelling of 1518225216 in words is "one billion, five hundred eighteen million, two hundred twenty-five thousand, two hundred sixteen".