215540501051567 has 2 divisors, whose sum is σ = 215540501051568. Its totient is φ = 215540501051566.

The previous prime is 215540501051483. The next prime is 215540501051593. The reversal of 215540501051567 is 765150105045512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215540501051567 - 2¹⁸ = 215540500789423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215540501051167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107770250525783 + 107770250525784.

It is an arithmetic number, because the mean of its divisors is an integer number (107770250525784).

Almost surely, 2^{215540501051567} is an apocalyptic number.

215540501051567 is a deficient number, since it is larger than the sum of its proper divisors (1).

215540501051567 is an equidigital number, since it uses as much as digits as its factorization.

215540501051567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050000, while the sum is 47.

The spelling of 215540501051567 in words is "two hundred fifteen trillion, five hundred forty billion, five hundred one million, fifty-one thousand, five hundred sixty-seven".