30215360081 has 8 divisors (see below), whose sum is σ = 30645509544. Its totient is φ = 29787779200.

The previous prime is 30215360069. The next prime is 30215360129. The reversal of 30215360081 is 18006351203.

It can be written as a sum of positive squares in 4 ways, for example, as 9892291600 + 20323068481 = 99460^2 + 142559^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30215360081 is a prime.

It is a super-2 number, since 2×30215360081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30215360011) 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, 618446 + ... + 665511.

It is an arithmetic number, because the mean of its divisors is an integer number (3830688693).

Almost surely, 2^30215360081 is an apocalyptic number.

It is an amenable number.

30215360081 is a deficient number, since it is larger than the sum of its proper divisors (430149463).

30215360081 is a wasteful number, since it uses less digits than its factorization.

30215360081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284291.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 30215360081 in words is "thirty billion, two hundred fifteen million, three hundred sixty thousand, eighty-one".