30613706661 has 8 divisors (see below), whose sum is σ = 42966605920. Its totient is φ = 19334972592.

The previous prime is 30613706647. The next prime is 30613706719. The reversal of 30613706661 is 16660731603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30613706661 - 2⁷ = 30613706533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30613702661) 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, 268541230 + ... + 268541343.

It is an arithmetic number, because the mean of its divisors is an integer number (5370825740).

Almost surely, 2^30613706661 is an apocalyptic number.

It is an amenable number.

30613706661 is a deficient number, since it is larger than the sum of its proper divisors (12352899259).

30613706661 is a wasteful number, since it uses less digits than its factorization.

30613706661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537082595.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 30613706661 in words is "thirty billion, six hundred thirteen million, seven hundred six thousand, six hundred sixty-one".