993033255560105 has 4 divisors (see below), whose sum is σ = 1191639906672132. Its totient is φ = 794426604448080.

The previous prime is 993033255560069. The next prime is 993033255560111. The reversal of 993033255560105 is 501065552330399.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 739351949314729 + 253681306245376 = 27191027^2 + 15927376^2 .

It is not a de Polignac number, because 993033255560105 - 2³⁶ = 992964536083369 is a prime.

It is a super-2 number, since 2×993033255560105² (a number of 31 digits) contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 99303325556006 + ... + 99303325556015.

It is an arithmetic number, because the mean of its divisors is an integer number (297909976668033).

Almost surely, 2^{993033255560105} is an apocalyptic number.

It is an amenable number.

993033255560105 is a deficient number, since it is larger than the sum of its proper divisors (198606651112027).

993033255560105 is a wasteful number, since it uses less digits than its factorization.

993033255560105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198606651112026.

The product of its (nonzero) digits is 16402500, while the sum is 56.

The spelling of 993033255560105 in words is "nine hundred ninety-three trillion, thirty-three billion, two hundred fifty-five million, five hundred sixty thousand, one hundred five".