215245551299 has 2 divisors, whose sum is σ = 215245551300. Its totient is φ = 215245551298.

The previous prime is 215245551253. The next prime is 215245551329. The reversal of 215245551299 is 992155542512.

215245551299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215245551299 - 2⁸ = 215245551043 is a prime.

It is not a weakly prime, because it can be changed into another prime (215245851299) 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 as a sum of consecutive naturals, namely, 107622775649 + 107622775650.

It is an arithmetic number, because the mean of its divisors is an integer number (107622775650).

Almost surely, 2^215245551299 is an apocalyptic number.

215245551299 is a deficient number, since it is larger than the sum of its proper divisors (1).

215245551299 is an equidigital number, since it uses as much as digits as its factorization.

215245551299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 50.

The spelling of 215245551299 in words is "two hundred fifteen billion, two hundred forty-five million, five hundred fifty-one thousand, two hundred ninety-nine".