1350621135551 has 16 divisors (see below), whose sum is σ = 1380942536640. Its totient is φ = 1320566353920.

The previous prime is 1350621135529. The next prime is 1350621135569. The reversal of 1350621135551 is 1555311260531.

It is a cyclic number.

It is not a de Polignac number, because 1350621135551 - 2³⁸ = 1075743228607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350621135511) 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, 109417886 + ... + 109430228.

It is an arithmetic number, because the mean of its divisors is an integer number (86308908540).

Almost surely, 2^{1350621135551} is an apocalyptic number.

1350621135551 is a deficient number, since it is larger than the sum of its proper divisors (30321401089).

1350621135551 is a wasteful number, since it uses less digits than its factorization.

1350621135551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22946.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 1350621135551 in words is "one trillion, three hundred fifty billion, six hundred twenty-one million, one hundred thirty-five thousand, five hundred fifty-one".