1206666450 has 288 divisors, whose sum is σ = 3740385600. Its totient is φ = 285753600.

The previous prime is 1206666427. The next prime is 1206666463. The reversal of 1206666450 is 546666021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13558006 + ... + 13558094.

It is an arithmetic number, because the mean of its divisors is an integer number (12987450).

Almost surely, 2^1206666450 is an apocalyptic number.

1206666450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206666450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870192800).

1206666450 is an abundant number, since it is smaller than the sum of its proper divisors (2533719150).

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

1206666450 is a wasteful number, since it uses less digits than its factorization.

1206666450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1206666450 is about 34737.1048016383. The cubic root of 1206666450 is about 1064.6227586737.

The spelling of 1206666450 in words is "one billion, two hundred six million, six hundred sixty-six thousand, four hundred fifty".