30149146573561 has 4 divisors (see below), whose sum is σ = 30562148581492. Its totient is φ = 29736144565632.

The previous prime is 30149146573531. The next prime is 30149146573591. The reversal of 30149146573561 is 16537564194103.

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

It is an interprime number because it is at equal distance from previous prime (30149146573531) and next prime (30149146573591).

It can be written as a sum of positive squares in 2 ways, for example, as 20514051211536 + 9635095362025 = 4529244^2 + 3104045^2 .

It is a cyclic number.

It is not a de Polignac number, because 30149146573561 - 2²³ = 30149138184953 is a prime.

It is a super-2 number, since 2×30149146573561² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30149146573531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206501003856 + ... + 206501004001.

It is an arithmetic number, because the mean of its divisors is an integer number (7640537145373).

Almost surely, 2^{30149146573561} is an apocalyptic number.

It is an amenable number.

30149146573561 is a deficient number, since it is larger than the sum of its proper divisors (413002007931).

30149146573561 is an equidigital number, since it uses as much as digits as its factorization.

30149146573561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413002007930.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 30149146573561 in words is "thirty trillion, one hundred forty-nine billion, one hundred forty-six million, five hundred seventy-three thousand, five hundred sixty-one".