656212401341 has 4 divisors (see below), whose sum is σ = 749957030112. Its totient is φ = 562467772572.

The previous prime is 656212401283. The next prime is 656212401373. The reversal of 656212401341 is 143104212656.

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 656212401341 - 2²² = 656208207037 is a prime.

It is a super-2 number, since 2×656212401341² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656212406341) 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, 46872314375 + ... + 46872314388.

It is an arithmetic number, because the mean of its divisors is an integer number (187489257528).

Almost surely, 2^656212401341 is an apocalyptic number.

It is an amenable number.

656212401341 is a deficient number, since it is larger than the sum of its proper divisors (93744628771).

656212401341 is an equidigital number, since it uses as much as digits as its factorization.

656212401341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93744628770.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 656212401341 its reverse (143104212656), we get a palindrome (799316613997).

The spelling of 656212401341 in words is "six hundred fifty-six billion, two hundred twelve million, four hundred one thousand, three hundred forty-one".