7561966890141 has 64 divisors (see below), whose sum is σ = 12247798671360. Its totient is φ = 4590488816640.

The previous prime is 7561966890139. The next prime is 7561966890169. The reversal of 7561966890141 is 1410986691657.

7561966890141 is a `hidden beast` number, since 7 + 5 + 619 + 6 + 6 + 8 + 9 + 0 + 1 + 4 + 1 = 666.

It is not a de Polignac number, because 7561966890141 - 2¹ = 7561966890139 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7561966890041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55097295 + ... + 55234371.

It is an arithmetic number, because the mean of its divisors is an integer number (191371854240).

Almost surely, 2^{7561966890141} is an apocalyptic number.

It is an amenable number.

7561966890141 is a deficient number, since it is larger than the sum of its proper divisors (4685831781219).

7561966890141 is a wasteful number, since it uses less digits than its factorization.

7561966890141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141011 (or 141005 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 7561966890141 in words is "seven trillion, five hundred sixty-one billion, nine hundred sixty-six million, eight hundred ninety thousand, one hundred forty-one".