1355213551455 has 24 divisors (see below), whose sum is σ = 2372294620800. Its totient is φ = 715624315200.

The previous prime is 1355213551409. The next prime is 1355213551481. The reversal of 1355213551455 is 5541553125531.

1355213551455 is a `hidden beast` number, since 1 + 3 + 5 + 52 + 1 + 3 + 551 + 45 + 5 = 666.

It is not a de Polignac number, because 1355213551455 - 2³² = 1350918584159 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 1355213551455.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 149083855 + ... + 149092944.

It is an arithmetic number, because the mean of its divisors is an integer number (98845609200).

Almost surely, 2^{1355213551455} is an apocalyptic number.

1355213551455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1355213551455 is a deficient number, since it is larger than the sum of its proper divisors (1017081069345).

1355213551455 is a wasteful number, since it uses less digits than its factorization.

1355213551455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298176911 (or 298176908 counting only the distinct ones).

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

Adding to 1355213551455 its reverse (5541553125531), we get a palindrome (6896766676986).

The spelling of 1355213551455 in words is "one trillion, three hundred fifty-five billion, two hundred thirteen million, five hundred fifty-one thousand, four hundred fifty-five".