941533991561 has 8 divisors (see below), whose sum is σ = 942401790624. Its totient is φ = 940666334400.

The previous prime is 941533991551. The next prime is 941533991603. The reversal of 941533991561 is 165199335149.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-941533991561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 941533991497 and 941533991506.

It is not an unprimeable number, because it can be changed into a prime (941533991551) 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, 16885850 + ... + 16941516.

It is an arithmetic number, because the mean of its divisors is an integer number (117800223828).

Almost surely, 2^941533991561 is an apocalyptic number.

It is an amenable number.

941533991561 is a deficient number, since it is larger than the sum of its proper divisors (867799063).

941533991561 is a wasteful number, since it uses less digits than its factorization.

941533991561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70951.

The product of its digits is 3936600, while the sum is 56.

The spelling of 941533991561 in words is "nine hundred forty-one billion, five hundred thirty-three million, nine hundred ninety-one thousand, five hundred sixty-one".