2215351432257 has 8 divisors (see below), whose sum is σ = 3109265168160. Its totient is φ = 1399169325600.

The previous prime is 2215351432253. The next prime is 2215351432403. The reversal of 2215351432257 is 7522341535122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2215351432257 - 2² = 2215351432253 is a prime.

It is a super-2 number, since 2×2215351432257² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2215351432253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19432907244 + ... + 19432907357.

It is an arithmetic number, because the mean of its divisors is an integer number (388658146020).

Almost surely, 2^{2215351432257} is an apocalyptic number.

It is an amenable number.

2215351432257 is a deficient number, since it is larger than the sum of its proper divisors (893913735903).

2215351432257 is a wasteful number, since it uses less digits than its factorization.

2215351432257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38865814623.

The product of its digits is 504000, while the sum is 42.

Adding to 2215351432257 its reverse (7522341535122), we get a palindrome (9737692967379).

The spelling of 2215351432257 in words is "two trillion, two hundred fifteen billion, three hundred fifty-one million, four hundred thirty-two thousand, two hundred fifty-seven".