30215133345545 has 16 divisors (see below), whose sum is σ = 36958759541568. Its totient is φ = 23707324271040.

The previous prime is 30215133345511. The next prime is 30215133345557. The reversal of 30215133345545 is 54554333151203.

It is not a de Polignac number, because 30215133345545 - 2²² = 30215129151241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30215133345496 and 30215133345505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142640579 + ... + 142852248.

It is an arithmetic number, because the mean of its divisors is an integer number (2309922471348).

Almost surely, 2^{30215133345545} is an apocalyptic number.

It is an amenable number.

30215133345545 is a deficient number, since it is larger than the sum of its proper divisors (6743626196023).

30215133345545 is a wasteful number, since it uses less digits than its factorization.

30215133345545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285493240.

The product of its (nonzero) digits is 1620000, while the sum is 44.

Adding to 30215133345545 its reverse (54554333151203), we get a palindrome (84769466496748).

The spelling of 30215133345545 in words is "thirty trillion, two hundred fifteen billion, one hundred thirty-three million, three hundred forty-five thousand, five hundred forty-five".