1062150721561 has 2 divisors, whose sum is σ = 1062150721562. Its totient is φ = 1062150721560.

The previous prime is 1062150721559. The next prime is 1062150721603. The reversal of 1062150721561 is 1651270512601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056282395536 + 5868326025 = 1027756^2 + 76605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1062150721561 - 2¹ = 1062150721559 is a prime.

It is a super-2 number, since 2×1062150721561² (a number of 25 digits) contains 22 as substring.

Together with 1062150721559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1062150721561.

It is not a weakly prime, because it can be changed into another prime (1062150721061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531075360780 + 531075360781.

It is an arithmetic number, because the mean of its divisors is an integer number (531075360781).

Almost surely, 2^{1062150721561} is an apocalyptic number.

It is an amenable number.

1062150721561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1062150721561 is an equidigital number, since it uses as much as digits as its factorization.

1062150721561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 1062150721561 in words is "one trillion, sixty-two billion, one hundred fifty million, seven hundred twenty-one thousand, five hundred sixty-one".