1216336546 has 8 divisors (see below), whose sum is σ = 1824663744. Its totient is φ = 608115300.

The previous prime is 1216336501. The next prime is 1216336549. The reversal of 1216336546 is 6456336121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1216336549) 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, 15571 + ... + 51721.

It is an arithmetic number, because the mean of its divisors is an integer number (228082968).

Almost surely, 2^1216336546 is an apocalyptic number.

1216336546 is a deficient number, since it is larger than the sum of its proper divisors (608327198).

1216336546 is a wasteful number, since it uses less digits than its factorization.

1216336546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52976.

The product of its digits is 77760, while the sum is 37.

The square root of 1216336546 is about 34876.0167737085. The cubic root of 1216336546 is about 1067.4591196933.

The spelling of 1216336546 in words is "one billion, two hundred sixteen million, three hundred thirty-six thousand, five hundred forty-six".