1355166265126 has 4 divisors (see below), whose sum is σ = 2032749397692. Its totient is φ = 677583132562.

The previous prime is 1355166265109. The next prime is 1355166265163. The reversal of 1355166265126 is 6215626615531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×1355166265126⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1355166265126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338791566280 + ... + 338791566283.

It is an arithmetic number, because the mean of its divisors is an integer number (508187349423).

Almost surely, 2^{1355166265126} is an apocalyptic number.

1355166265126 is a deficient number, since it is larger than the sum of its proper divisors (677583132566).

1355166265126 is an equidigital number, since it uses as much as digits as its factorization.

1355166265126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677583132565.

The product of its digits is 1944000, while the sum is 49.

The spelling of 1355166265126 in words is "one trillion, three hundred fifty-five billion, one hundred sixty-six million, two hundred sixty-five thousand, one hundred twenty-six".