1216167052 has 12 divisors (see below), whose sum is σ = 2129472576. Its totient is φ = 607746320.

The previous prime is 1216167011. The next prime is 1216167061. The reversal of 1216167052 is 2507616121.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76099 + ... + 90682.

It is an arithmetic number, because the mean of its divisors is an integer number (177456048).

Almost surely, 2^1216167052 is an apocalyptic number.

It is an amenable number.

1216167052 is a deficient number, since it is larger than the sum of its proper divisors (913305524).

1216167052 is a wasteful number, since it uses less digits than its factorization.

1216167052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168608 (or 168606 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1216167052 is about 34873.5867383898. The cubic root of 1216167052 is about 1067.4095346446.

The spelling of 1216167052 in words is "one billion, two hundred sixteen million, one hundred sixty-seven thousand, fifty-two".