30561554106145 has 4 divisors (see below), whose sum is σ = 36673864927380. Its totient is φ = 24449243284912.

The previous prime is 30561554106049. The next prime is 30561554106151. The reversal of 30561554106145 is 54160145516503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7705237740561 + 22856316365584 = 2775831^2 + 4780828^2 .

It is a cyclic number.

It is not a de Polignac number, because 30561554106145 - 2¹⁹ = 30561553581857 is a prime.

It is a super-2 number, since 2×30561554106145² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30561554106095 and 30561554106104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3056155410610 + ... + 3056155410619.

It is an arithmetic number, because the mean of its divisors is an integer number (9168466231845).

Almost surely, 2^{30561554106145} is an apocalyptic number.

It is an amenable number.

30561554106145 is a deficient number, since it is larger than the sum of its proper divisors (6112310821235).

30561554106145 is an equidigital number, since it uses as much as digits as its factorization.

30561554106145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112310821234.

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 30561554106145 in words is "thirty trillion, five hundred sixty-one billion, five hundred fifty-four million, one hundred six thousand, one hundred forty-five".