1355433805998 has 32 divisors (see below), whose sum is σ = 3013293405600. Its totient is φ = 451628526528.

The previous prime is 1355433805949. The next prime is 1355433806063. The reversal of 1355433805998 is 8995083345531.

It is a happy number.

1355433805998 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 4 + 3 + 38 + 0 + 599 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4941393 + ... + 5208476.

It is an arithmetic number, because the mean of its divisors is an integer number (94165418925).

Almost surely, 2^{1355433805998} is an apocalyptic number.

1355433805998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1355433805998 is an abundant number, since it is smaller than the sum of its proper divisors (1657859599602).

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

1355433805998 is a wasteful number, since it uses less digits than its factorization.

1355433805998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152353 (or 10152347 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 63.

The spelling of 1355433805998 in words is "one trillion, three hundred fifty-five billion, four hundred thirty-three million, eight hundred five thousand, nine hundred ninety-eight".