2215161263411 has 2 divisors, whose sum is σ = 2215161263412. Its totient is φ = 2215161263410.

The previous prime is 2215161263407. The next prime is 2215161263473. The reversal of 2215161263411 is 1143621615122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215161263411 - 2² = 2215161263407 is a prime.

It is a super-3 number, since 3×2215161263411³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2215161263311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107580631705 + 1107580631706.

It is an arithmetic number, because the mean of its divisors is an integer number (1107580631706).

Almost surely, 2^{2215161263411} is an apocalyptic number.

2215161263411 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215161263411 is an equidigital number, since it uses as much as digits as its factorization.

2215161263411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

Adding to 2215161263411 its reverse (1143621615122), we get a palindrome (3358782878533).

The spelling of 2215161263411 in words is "two trillion, two hundred fifteen billion, one hundred sixty-one million, two hundred sixty-three thousand, four hundred eleven".