1351550645500 has 192 divisors, whose sum is σ = 3415520908800. Its totient is φ = 462047040000.

The previous prime is 1351550645491. The next prime is 1351550645507. The reversal of 1351550645500 is 55460551531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351550645507) 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 63 ways as a sum of consecutive naturals, for example, 13640136 + ... + 13738864.

It is an arithmetic number, because the mean of its divisors is an integer number (17789171400).

Almost surely, 2^{1351550645500} is an apocalyptic number.

1351550645500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351550645500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707760454400).

1351550645500 is an abundant number, since it is smaller than the sum of its proper divisors (2063970263300).

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

1351550645500 is a wasteful number, since it uses less digits than its factorization.

1351550645500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98909 (or 98897 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 1351550645500 in words is "one trillion, three hundred fifty-one billion, five hundred fifty million, six hundred forty-five thousand, five hundred".