1563960961117 has 8 divisors (see below), whose sum is σ = 1572473779136. Its totient is φ = 1555452364032.

The previous prime is 1563960961097. The next prime is 1563960961153. The reversal of 1563960961117 is 7111690693651.

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

It is a cyclic number.

It is not a de Polignac number, because 1563960961117 - 2²⁷ = 1563826743389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563960961187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310743 + ... + 1795684.

It is an arithmetic number, because the mean of its divisors is an integer number (196559222392).

Almost surely, 2^{1563960961117} is an apocalyptic number.

It is an amenable number.

1563960961117 is a deficient number, since it is larger than the sum of its proper divisors (8512818019).

1563960961117 is a wasteful number, since it uses less digits than its factorization.

1563960961117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110467.

The product of its (nonzero) digits is 1837080, while the sum is 55.

The spelling of 1563960961117 in words is "one trillion, five hundred sixty-three billion, nine hundred sixty million, nine hundred sixty-one thousand, one hundred seventeen".