215409772096 has 14 divisors (see below), whose sum is σ = 427453766630. Its totient is φ = 107704886016.

The previous prime is 215409772091. The next prime is 215409772099. The reversal of 215409772096 is 690277904512.

It can be written as a sum of positive squares in only one way, i.e., 214999142400 + 410629696 = 463680^2 + 20264^2 .

It is not an unprimeable number, because it can be changed into a prime (215409772091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1682888781 + ... + 1682888908.

Almost surely, 2^215409772096 is an apocalyptic number.

It is an amenable number.

215409772096 is a deficient number, since it is larger than the sum of its proper divisors (212043994534).

215409772096 is an equidigital number, since it uses as much as digits as its factorization.

215409772096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365777701 (or 3365777691 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 215409772096 in words is "two hundred fifteen billion, four hundred nine million, seven hundred seventy-two thousand, ninety-six".