1355561211026 has 32 divisors (see below), whose sum is σ = 2230203241728. Its totient is φ = 612836490240.

The previous prime is 1355561211023. The next prime is 1355561211049. The reversal of 1355561211026 is 6201121655531.

It is not an unprimeable number, because it can be changed into a prime (1355561211023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2786546 + ... + 3236658.

It is an arithmetic number, because the mean of its divisors is an integer number (69693851304).

Almost surely, 2^{1355561211026} is an apocalyptic number.

1355561211026 is a deficient number, since it is larger than the sum of its proper divisors (874642030702).

1355561211026 is a wasteful number, since it uses less digits than its factorization.

1355561211026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450866.

The product of its (nonzero) digits is 54000, while the sum is 38.

Adding to 1355561211026 its reverse (6201121655531), we get a palindrome (7556682866557).

The spelling of 1355561211026 in words is "one trillion, three hundred fifty-five billion, five hundred sixty-one million, two hundred eleven thousand, twenty-six".