1326504216066 has 16 divisors (see below), whose sum is σ = 2653024739904. Its totient is φ = 442165354064.

The previous prime is 1326504216053. The next prime is 1326504216131. The reversal of 1326504216066 is 6606124056231.

It is a super-2 number, since 2×1326504216066² (a number of 25 digits) contains 22 as substring.

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, 548731 + ... + 1718753.

It is an arithmetic number, because the mean of its divisors is an integer number (165814046244).

Almost surely, 2^{1326504216066} is an apocalyptic number.

1326504216066 is an abundant number, since it is smaller than the sum of its proper divisors (1326520523838).

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

1326504216066 is a wasteful number, since it uses less digits than its factorization.

1326504216066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358985.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1326504216066 in words is "one trillion, three hundred twenty-six billion, five hundred four million, two hundred sixteen thousand, sixty-six".