11530420645 has 8 divisors (see below), whose sum is σ = 13919359104. Its totient is φ = 9169100304.

The previous prime is 11530420613. The next prime is 11530420703. The reversal of 11530420645 is 54602403511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11530420645 - 2⁵ = 11530420613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6903609 + ... + 6905278.

It is an arithmetic number, because the mean of its divisors is an integer number (1739919888).

Almost surely, 2^11530420645 is an apocalyptic number.

It is an amenable number.

11530420645 is a deficient number, since it is larger than the sum of its proper divisors (2388938459).

11530420645 is a wasteful number, since it uses less digits than its factorization.

11530420645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13809059.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 11530420645 in words is "eleven billion, five hundred thirty million, four hundred twenty thousand, six hundred forty-five".