215145213513465 has 8 divisors (see below), whose sum is σ = 344232341621568. Its totient is φ = 114744113873840.

The previous prime is 215145213513409. The next prime is 215145213513469. The reversal of 215145213513465 is 564315312541512.

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

It is not a de Polignac number, because 215145213513465 - 2⁷ = 215145213513337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215145213513469) 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, 7171507117101 + ... + 7171507117130.

It is an arithmetic number, because the mean of its divisors is an integer number (43029042702696).

Almost surely, 2^{215145213513465} is an apocalyptic number.

It is an amenable number.

215145213513465 is a deficient number, since it is larger than the sum of its proper divisors (129087128108103).

215145213513465 is a wasteful number, since it uses less digits than its factorization.

215145213513465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14343014234239.

The product of its digits is 2160000, while the sum is 48.

The spelling of 215145213513465 in words is "two hundred fifteen trillion, one hundred forty-five billion, two hundred thirteen million, five hundred thirteen thousand, four hundred sixty-five".