1081655650481 has 16 divisors (see below), whose sum is σ = 1243692527616. Its totient is φ = 921498439056.

The previous prime is 1081655650477. The next prime is 1081655650513. The reversal of 1081655650481 is 1840565561801.

It is a cyclic number.

It is not a de Polignac number, because 1081655650481 - 2² = 1081655650477 is a prime.

It is a super-2 number, since 2×1081655650481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081655650451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15310220 + ... + 15380706.

It is an arithmetic number, because the mean of its divisors is an integer number (77730782976).

Almost surely, 2^{1081655650481} is an apocalyptic number.

It is an amenable number.

1081655650481 is a deficient number, since it is larger than the sum of its proper divisors (162036877135).

1081655650481 is a wasteful number, since it uses less digits than its factorization.

1081655650481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83788.

The product of its (nonzero) digits is 1152000, while the sum is 50.

The spelling of 1081655650481 in words is "one trillion, eighty-one billion, six hundred fifty-five million, six hundred fifty thousand, four hundred eighty-one".