880440695661561 has 8 divisors (see below), whose sum is σ = 1176456393916800. Its totient is φ = 585692730590352.

The previous prime is 880440695661559. The next prime is 880440695661577. The reversal of 880440695661561 is 165166596044088.

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

It is not a de Polignac number, because 880440695661561 - 2¹ = 880440695661559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (880440695661551) 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 7 ways as a sum of consecutive naturals, for example, 316933294386 + ... + 316933297163.

It is an arithmetic number, because the mean of its divisors is an integer number (147057049239600).

Almost surely, 2^{880440695661561} is an apocalyptic number.

It is an amenable number.

880440695661561 is a deficient number, since it is larger than the sum of its proper divisors (296015698255239).

880440695661561 is a wasteful number, since it uses less digits than its factorization.

880440695661561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633866592015.

The product of its (nonzero) digits is 298598400, while the sum is 69.

The spelling of 880440695661561 in words is "eight hundred eighty trillion, four hundred forty billion, six hundred ninety-five million, six hundred sixty-one thousand, five hundred sixty-one".