215795151651 has 4 divisors (see below), whose sum is σ = 287726868872. Its totient is φ = 143863434432.

The previous prime is 215795151641. The next prime is 215795151709. The reversal of 215795151651 is 156151597512.

215795151651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 215795151651 - 2⁶ = 215795151587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215795151651.

It is not an unprimeable number, because it can be changed into a prime (215795151641) 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 in 3 ways as a sum of consecutive naturals, for example, 35965858606 + ... + 35965858611.

It is an arithmetic number, because the mean of its divisors is an integer number (71931717218).

Almost surely, 2^215795151651 is an apocalyptic number.

215795151651 is a deficient number, since it is larger than the sum of its proper divisors (71931717221).

215795151651 is an equidigital number, since it uses as much as digits as its factorization.

215795151651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71931717220.

The product of its digits is 472500, while the sum is 48.

The spelling of 215795151651 in words is "two hundred fifteen billion, seven hundred ninety-five million, one hundred fifty-one thousand, six hundred fifty-one".