215106345575 has 24 divisors (see below), whose sum is σ = 291008862336. Its totient is φ = 156425580000.

The previous prime is 215106345547. The next prime is 215106345577. The reversal of 215106345575 is 575543601512.

215106345575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215106345575 - 2²⁴ = 215089568359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215106345577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3279350 + ... + 3344300.

It is an arithmetic number, because the mean of its divisors is an integer number (12125369264).

Almost surely, 2^215106345575 is an apocalyptic number.

215106345575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

215106345575 is a deficient number, since it is larger than the sum of its proper divisors (75902516761).

215106345575 is a wasteful number, since it uses less digits than its factorization.

215106345575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77015 (or 77010 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 215106345575 in words is "two hundred fifteen billion, one hundred six million, three hundred forty-five thousand, five hundred seventy-five".