3550878445664 has 48 divisors (see below), whose sum is σ = 7646440979520. Its totient is φ = 1609776927360.

The previous prime is 3550878445663. The next prime is 3550878445703. The reversal of 3550878445664 is 4665448780553.

It is a self number, because there is not a number n which added to its sum of digits gives 3550878445664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550878445663) 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, 13174934 + ... + 13441749.

It is an arithmetic number, because the mean of its divisors is an integer number (159300853740).

Almost surely, 2^{3550878445664} is an apocalyptic number.

It is an amenable number.

3550878445664 is an abundant number, since it is smaller than the sum of its proper divisors (4095562533856).

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

3550878445664 is a wasteful number, since it uses less digits than its factorization.

3550878445664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26617083 (or 26617075 counting only the distinct ones).

The product of its (nonzero) digits is 387072000, while the sum is 65.

The spelling of 3550878445664 in words is "three trillion, five hundred fifty billion, eight hundred seventy-eight million, four hundred forty-five thousand, six hundred sixty-four".