215046665411 has 4 divisors (see below), whose sum is σ = 216160897032. Its totient is φ = 213932433792.

The previous prime is 215046665359. The next prime is 215046665459. The reversal of 215046665411 is 114566640512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215046665411 - 2⁶ = 215046665347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215046665311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557115521 + ... + 557115906.

It is an arithmetic number, because the mean of its divisors is an integer number (54040224258).

Almost surely, 2^215046665411 is an apocalyptic number.

215046665411 is a deficient number, since it is larger than the sum of its proper divisors (1114231621).

215046665411 is a wasteful number, since it uses less digits than its factorization.

215046665411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114231620.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 215046665411 in words is "two hundred fifteen billion, forty-six million, six hundred sixty-five thousand, four hundred eleven".