10656215149 has 2 divisors, whose sum is σ = 10656215150. Its totient is φ = 10656215148.

The previous prime is 10656214991. The next prime is 10656215153. The reversal of 10656215149 is 94151265601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9109366249 + 1546848900 = 95443^2 + 39330^2 .

It is a cyclic number.

It is not a de Polignac number, because 10656215149 - 2²¹ = 10654117997 is a prime.

It is a super-2 number, since 2×10656215149² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10656215159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328107574 + 5328107575.

It is an arithmetic number, because the mean of its divisors is an integer number (5328107575).

Almost surely, 2^10656215149 is an apocalyptic number.

It is an amenable number.

10656215149 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656215149 is an equidigital number, since it uses as much as digits as its factorization.

10656215149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 10656215149 in words is "ten billion, six hundred fifty-six million, two hundred fifteen thousand, one hundred forty-nine".