215065632477530 has 16 divisors (see below), whose sum is σ = 387539376929280. Its totient is φ = 85932644442192.

The previous prime is 215065632477511. The next prime is 215065632477587. The reversal of 215065632477530 is 35774236560512.

It is a super-3 number, since 3×215065632477530³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11701058954 + ... + 11701077333.

It is an arithmetic number, because the mean of its divisors is an integer number (24221211058080).

Almost surely, 2^{215065632477530} is an apocalyptic number.

215065632477530 is a deficient number, since it is larger than the sum of its proper divisors (172473744451750).

215065632477530 is a wasteful number, since it uses less digits than its factorization.

215065632477530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23402137213.

The product of its (nonzero) digits is 31752000, while the sum is 56.

The spelling of 215065632477530 in words is "two hundred fifteen trillion, sixty-five billion, six hundred thirty-two million, four hundred seventy-seven thousand, five hundred thirty".