215288152445 has 16 divisors (see below), whose sum is σ = 261398016000. Its totient is φ = 170197915008.

The previous prime is 215288152423. The next prime is 215288152447. The reversal of 215288152445 is 544251882512.

It is a cyclic number.

It is not a de Polignac number, because 215288152445 - 2¹⁴ = 215288136061 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 215288152445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215288152447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645236 + ... + 920274.

It is an arithmetic number, because the mean of its divisors is an integer number (16337376000).

Almost surely, 2^215288152445 is an apocalyptic number.

It is an amenable number.

215288152445 is a deficient number, since it is larger than the sum of its proper divisors (46109863555).

215288152445 is a wasteful number, since it uses less digits than its factorization.

215288152445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276892.

The product of its digits is 1024000, while the sum is 47.

The spelling of 215288152445 in words is "two hundred fifteen billion, two hundred eighty-eight million, one hundred fifty-two thousand, four hundred forty-five".