1206556216 has 8 divisors (see below), whose sum is σ = 2262292920. Its totient is φ = 603278104.

The previous prime is 1206556213. The next prime is 1206556229. The reversal of 1206556216 is 6126556021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206556213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75409756 + ... + 75409771.

It is an arithmetic number, because the mean of its divisors is an integer number (282786615).

Almost surely, 2^1206556216 is an apocalyptic number.

It is an amenable number.

1206556216 is a deficient number, since it is larger than the sum of its proper divisors (1055736704).

1206556216 is a wasteful number, since it uses less digits than its factorization.

1206556216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150819533 (or 150819529 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1206556216 is about 34735.5180758831. The cubic root of 1206556216 is about 1064.5903384471.

The spelling of 1206556216 in words is "one billion, two hundred six million, five hundred fifty-six thousand, two hundred sixteen".