30149644654561 has 4 divisors (see below), whose sum is σ = 30460465733572. Its totient is φ = 29838823575552.

The previous prime is 30149644654529. The next prime is 30149644654609. The reversal of 30149644654561 is 16545644694103.

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 11811037484961 + 18338607169600 = 3436719^2 + 4282360^2 .

It is a cyclic number.

It is not a de Polignac number, because 30149644654561 - 2⁵ = 30149644654529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30149644654496 and 30149644654505.

It is not an unprimeable number, because it can be changed into a prime (30149644654501) 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, 155410539360 + ... + 155410539553.

It is an arithmetic number, because the mean of its divisors is an integer number (7615116433393).

Almost surely, 2^{30149644654561} is an apocalyptic number.

It is an amenable number.

30149644654561 is a deficient number, since it is larger than the sum of its proper divisors (310821079011).

30149644654561 is an equidigital number, since it uses as much as digits as its factorization.

30149644654561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310821079010.

The product of its (nonzero) digits is 37324800, while the sum is 58.

The spelling of 30149644654561 in words is "thirty trillion, one hundred forty-nine billion, six hundred forty-four million, six hundred fifty-four thousand, five hundred sixty-one".