3561810868055 has 48 divisors (see below), whose sum is σ = 4825195673760. Its totient is φ = 2520755086080.

The previous prime is 3561810868037. The next prime is 3561810868117. The reversal of 3561810868055 is 5508680181653.

It is not a de Polignac number, because 3561810868055 - 2⁶ = 3561810867991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6743549 + ... + 7252521.

It is an arithmetic number, because the mean of its divisors is an integer number (100524909870).

Almost surely, 2^{3561810868055} is an apocalyptic number.

3561810868055 is a deficient number, since it is larger than the sum of its proper divisors (1263384805705).

3561810868055 is a wasteful number, since it uses less digits than its factorization.

3561810868055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509312 (or 509301 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 56.

The spelling of 3561810868055 in words is "three trillion, five hundred sixty-one billion, eight hundred ten million, eight hundred sixty-eight thousand, fifty-five".