215588051884801 has 2 divisors, whose sum is σ = 215588051884802. Its totient is φ = 215588051884800.

The previous prime is 215588051884789. The next prime is 215588051884867. The reversal of 215588051884801 is 108488150885512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139577117404176 + 76010934480625 = 11814276^2 + 8718425^2 .

It is a cyclic number.

It is not a de Polignac number, because 215588051884801 - 2¹³ = 215588051876609 is a prime.

It is not a weakly prime, because it can be changed into another prime (215588051834801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107794025942400 + 107794025942401.

It is an arithmetic number, because the mean of its divisors is an integer number (107794025942401).

Almost surely, 2^{215588051884801} is an apocalyptic number.

It is an amenable number.

215588051884801 is a deficient number, since it is larger than the sum of its proper divisors (1).

215588051884801 is an equidigital number, since it uses as much as digits as its factorization.

215588051884801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32768000, while the sum is 64.

The spelling of 215588051884801 in words is "two hundred fifteen trillion, five hundred eighty-eight billion, fifty-one million, eight hundred eighty-four thousand, eight hundred one".