215544530513042 has 32 divisors (see below), whose sum is σ = 341488270835712. Its totient is φ = 101829750819984.

The previous prime is 215544530513021. The next prime is 215544530513051. The reversal of 215544530513042 is 240315035445512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 215544530512984 and 215544530513002.

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, 22284143 + ... + 30457709.

It is an arithmetic number, because the mean of its divisors is an integer number (10671508463616).

Almost surely, 2^{215544530513042} is an apocalyptic number.

215544530513042 is a deficient number, since it is larger than the sum of its proper divisors (125943740322670).

215544530513042 is a wasteful number, since it uses less digits than its factorization.

215544530513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180582.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 215544530513042 its reverse (240315035445512), we get a palindrome (455859565958554).

The spelling of 215544530513042 in words is "two hundred fifteen trillion, five hundred forty-four billion, five hundred thirty million, five hundred thirteen thousand, forty-two".