30708113661 has 8 divisors (see below), whose sum is σ = 45493501760. Its totient is φ = 20472075756.

The previous prime is 30708113651. The next prime is 30708113669. The reversal of 30708113661 is 16631180703.

It is not a de Polignac number, because 30708113661 - 2¹⁹ = 30707589373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30708113669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568668745 + ... + 568668798.

It is an arithmetic number, because the mean of its divisors is an integer number (5686687720).

Almost surely, 2^30708113661 is an apocalyptic number.

It is an amenable number.

30708113661 is a deficient number, since it is larger than the sum of its proper divisors (14785388099).

30708113661 is a wasteful number, since it uses less digits than its factorization.

30708113661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137337552 (or 1137337546 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 30708113661 in words is "thirty billion, seven hundred eight million, one hundred thirteen thousand, six hundred sixty-one".