215370113465 has 32 divisors (see below), whose sum is σ = 287523704832. Its totient is φ = 153793728000.

The previous prime is 215370113437. The next prime is 215370113467. The reversal of 215370113465 is 564311073512.

It is a happy number.

It is not a de Polignac number, because 215370113465 - 2⁶ = 215370113401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215370113467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2621360 + ... + 2702270.

It is an arithmetic number, because the mean of its divisors is an integer number (8985115776).

Almost surely, 2^215370113465 is an apocalyptic number.

It is an amenable number.

215370113465 is a deficient number, since it is larger than the sum of its proper divisors (72153591367).

215370113465 is a wasteful number, since it uses less digits than its factorization.

215370113465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82281.

The product of its (nonzero) digits is 75600, while the sum is 38.

Adding to 215370113465 its reverse (564311073512), we get a palindrome (779681186977).

The spelling of 215370113465 in words is "two hundred fifteen billion, three hundred seventy million, one hundred thirteen thousand, four hundred sixty-five".