30656256401 has 4 divisors (see below), whose sum is σ = 32269743600. Its totient is φ = 29042769204.

The previous prime is 30656256359. The next prime is 30656256403. The reversal of 30656256401 is 10465265603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30656256401 - 2²² = 30652062097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30656256403) 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, 806743571 + ... + 806743608.

It is an arithmetic number, because the mean of its divisors is an integer number (8067435900).

Almost surely, 2^30656256401 is an apocalyptic number.

It is an amenable number.

30656256401 is a deficient number, since it is larger than the sum of its proper divisors (1613487199).

30656256401 is a wasteful number, since it uses less digits than its factorization.

30656256401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613487198.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 30656256401 in words is "thirty billion, six hundred fifty-six million, two hundred fifty-six thousand, four hundred one".