214640663353 has 4 divisors (see below), whose sum is σ = 214658386560. Its totient is φ = 214622940148.

The previous prime is 214640663351. The next prime is 214640663401. The reversal of 214640663353 is 353366046412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214640663353 - 2¹ = 214640663351 is a prime.

It is a super-2 number, since 2×214640663353² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214640663351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8843425 + ... + 8867662.

It is an arithmetic number, because the mean of its divisors is an integer number (53664596640).

Almost surely, 2^214640663353 is an apocalyptic number.

It is an amenable number.

214640663353 is a deficient number, since it is larger than the sum of its proper divisors (17723207).

214640663353 is a wasteful number, since it uses less digits than its factorization.

214640663353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17723206.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 214640663353 in words is "two hundred fourteen billion, six hundred forty million, six hundred sixty-three thousand, three hundred fifty-three".