30807222661 has 4 divisors (see below), whose sum is σ = 30807582412. Its totient is φ = 30806862912.

The previous prime is 30807222637. The next prime is 30807222671. The reversal of 30807222661 is 16622270803.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1377820161 + 29429402500 = 37119^2 + 171550^2 .

It is a cyclic number.

It is not a de Polignac number, because 30807222661 - 2⁷ = 30807222533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30807222661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30807222671) 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, 30925 + ... + 250141.

It is an arithmetic number, because the mean of its divisors is an integer number (7701895603).

Almost surely, 2^30807222661 is an apocalyptic number.

It is an amenable number.

30807222661 is a deficient number, since it is larger than the sum of its proper divisors (359751).

30807222661 is a wasteful number, since it uses less digits than its factorization.

30807222661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359750.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 30807222661 in words is "thirty billion, eight hundred seven million, two hundred twenty-two thousand, six hundred sixty-one".