12352621041646 has 4 divisors (see below), whose sum is σ = 18528931562472. Its totient is φ = 6176310520822.

The previous prime is 12352621041643. The next prime is 12352621041667. The reversal of 12352621041646 is 64614012625321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12352621041643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3088155260410 + ... + 3088155260413.

It is an arithmetic number, because the mean of its divisors is an integer number (4632232890618).

Almost surely, 2^{12352621041646} is an apocalyptic number.

12352621041646 is a deficient number, since it is larger than the sum of its proper divisors (6176310520826).

12352621041646 is an equidigital number, since it uses as much as digits as its factorization.

12352621041646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176310520825.

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 12352621041646 its reverse (64614012625321), we get a palindrome (76966633666967).

The spelling of 12352621041646 in words is "twelve trillion, three hundred fifty-two billion, six hundred twenty-one million, forty-one thousand, six hundred forty-six".