1356405532066 has 16 divisors (see below), whose sum is σ = 2266672375800. Its totient is φ = 604445966208.

The previous prime is 1356405532061. The next prime is 1356405532067. The reversal of 1356405532066 is 6602355046531.

It can be written as a sum of positive squares in 4 ways, for example, as 1280452928041 + 75952604025 = 1131571^2 + 275595^2 .

It is a super-3 number, since 3×1356405532066³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1356405532061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899472411 + ... + 899473918.

Almost surely, 2^{1356405532066} is an apocalyptic number.

1356405532066 is a deficient number, since it is larger than the sum of its proper divisors (910266843734).

1356405532066 is a wasteful number, since it uses less digits than its factorization.

1356405532066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798946373.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 1356405532066 in words is "one trillion, three hundred fifty-six billion, four hundred five million, five hundred thirty-two thousand, sixty-six".