61265644202041 has 4 divisors (see below), whose sum is σ = 61265659870800. Its totient is φ = 61265628533284.

The previous prime is 61265644201991. The next prime is 61265644202047. The reversal of 61265644202041 is 14020244656216.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61265644202041 - 2²³ = 61265635813433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61265644202047) 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, 3415530 + ... + 11584348.

It is an arithmetic number, because the mean of its divisors is an integer number (15316414967700).

Almost surely, 2^{61265644202041} is an apocalyptic number.

It is an amenable number.

61265644202041 is a deficient number, since it is larger than the sum of its proper divisors (15668759).

61265644202041 is an equidigital number, since it uses as much as digits as its factorization.

61265644202041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15668758.

The product of its (nonzero) digits is 552960, while the sum is 43.

Adding to 61265644202041 its reverse (14020244656216), we get a palindrome (75285888858257).

The spelling of 61265644202041 in words is "sixty-one trillion, two hundred sixty-five billion, six hundred forty-four million, two hundred two thousand, forty-one".