3555411544981 has 4 divisors (see below), whose sum is σ = 3555444668832. Its totient is φ = 3555378421132.

The previous prime is 3555411544963. The next prime is 3555411545041. The reversal of 3555411544981 is 1894451145553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3555411544981 - 2²¹ = 3555409447829 is a prime.

It is a super-2 number, since 2×3555411544981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3555411544681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16400395 + ... + 16615768.

It is an arithmetic number, because the mean of its divisors is an integer number (888861167208).

Almost surely, 2^{3555411544981} is an apocalyptic number.

It is an amenable number.

3555411544981 is a deficient number, since it is larger than the sum of its proper divisors (33123851).

3555411544981 is a wasteful number, since it uses less digits than its factorization.

3555411544981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33123850.

The product of its digits is 8640000, while the sum is 55.

The spelling of 3555411544981 in words is "three trillion, five hundred fifty-five billion, four hundred eleven million, five hundred forty-four thousand, nine hundred eighty-one".