1351565500545 has 48 divisors (see below), whose sum is σ = 2632614566400. Its totient is φ = 636456256128.

The previous prime is 1351565500531. The next prime is 1351565500577. The reversal of 1351565500545 is 5450055651531.

1351565500545 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 56 + 5 + 50 + 0 + 545 = 666.

It is not a de Polignac number, because 1351565500545 - 2⁴ = 1351565500529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1351565500545.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 50211945 + ... + 50238854.

It is an arithmetic number, because the mean of its divisors is an integer number (54846136800).

Almost surely, 2^{1351565500545} is an apocalyptic number.

1351565500545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351565500545 is a deficient number, since it is larger than the sum of its proper divisors (1281049065855).

1351565500545 is a wasteful number, since it uses less digits than its factorization.

1351565500545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100450846 (or 100450843 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 45.

The spelling of 1351565500545 in words is "one trillion, three hundred fifty-one billion, five hundred sixty-five million, five hundred thousand, five hundred forty-five".