1356123541550 has 24 divisors (see below), whose sum is σ = 2552780033496. Its totient is φ = 535913879840.

The previous prime is 1356123541537. The next prime is 1356123541573. The reversal of 1356123541550 is 551453216531.

It is a super-2 number, since 2×1356123541550² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1356123541498 and 1356123541507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163384229 + ... + 163392528.

It is an arithmetic number, because the mean of its divisors is an integer number (106365834729).

Almost surely, 2^{1356123541550} is an apocalyptic number.

1356123541550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1356123541550 is a deficient number, since it is larger than the sum of its proper divisors (1196656491946).

1356123541550 is a wasteful number, since it uses less digits than its factorization.

1356123541550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326776852 (or 326776847 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 1356123541550 in words is "one trillion, three hundred fifty-six billion, one hundred twenty-three million, five hundred forty-one thousand, five hundred fifty".