981067131056 has 20 divisors (see below), whose sum is σ = 1911804956592. Its totient is φ = 487698110016.

The previous prime is 981067131053. The next prime is 981067131071. The reversal of 981067131056 is 650131760189.

It is a self number, because there is not a number n which added to its sum of digits gives 981067131056.

It is not an unprimeable number, because it can be changed into a prime (981067131053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177213116 + ... + 177218651.

Almost surely, 2^981067131056 is an apocalyptic number.

It is an amenable number.

981067131056 is a deficient number, since it is larger than the sum of its proper divisors (930737825536).

981067131056 is a wasteful number, since it uses less digits than its factorization.

981067131056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354431948 (or 354431942 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 981067131056 in words is "nine hundred eighty-one billion, sixty-seven million, one hundred thirty-one thousand, fifty-six".