3550881032645 has 8 divisors (see below), whose sum is σ = 4268545919640. Its totient is φ = 2835712372480.

The previous prime is 3550881032641. The next prime is 3550881032653. The reversal of 3550881032645 is 5462301880553.

It can be written as a sum of positive squares in 4 ways, for example, as 662788117924 + 2888092914721 = 814118^2 + 1699439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3550881032645 - 2² = 3550881032641 is a prime.

It is a super-2 number, since 2×3550881032645² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3550881032593 and 3550881032602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550881032641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624053576 + ... + 624059265.

It is an arithmetic number, because the mean of its divisors is an integer number (533568239955).

Almost surely, 2^{3550881032645} is an apocalyptic number.

It is an amenable number.

3550881032645 is a deficient number, since it is larger than the sum of its proper divisors (717664886995).

3550881032645 is a wasteful number, since it uses less digits than its factorization.

3550881032645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248113415.

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 3550881032645 in words is "three trillion, five hundred fifty billion, eight hundred eighty-one million, thirty-two thousand, six hundred forty-five".