3557257888181 has 4 divisors (see below), whose sum is σ = 3560648983500. Its totient is φ = 3553866792864.

The previous prime is 3557257888169. The next prime is 3557257888207. The reversal of 3557257888181 is 1818887527553.

3557257888181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3441640887556 + 115617000625 = 1855166^2 + 340025^2 .

It is a cyclic number.

It is not a de Polignac number, because 3557257888181 - 2³⁰ = 3556184146357 is a prime.

It is a super-2 number, since 2×3557257888181² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557257888141) 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 3 ways as a sum of consecutive naturals, for example, 1695546086 + ... + 1695548183.

It is an arithmetic number, because the mean of its divisors is an integer number (890162245875).

Almost surely, 2^{3557257888181} is an apocalyptic number.

It is an amenable number.

3557257888181 is a deficient number, since it is larger than the sum of its proper divisors (3391095319).

3557257888181 is a wasteful number, since it uses less digits than its factorization.

3557257888181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391095318.

The product of its digits is 150528000, while the sum is 68.

The spelling of 3557257888181 in words is "three trillion, five hundred fifty-seven billion, two hundred fifty-seven million, eight hundred eighty-eight thousand, one hundred eighty-one".