412230715661 has 4 divisors (see below), whose sum is σ = 412275430524. Its totient is φ = 412186000800.

The previous prime is 412230715621. The next prime is 412230715691. The reversal of 412230715661 is 166517032214.

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

It can be written as a sum of positive squares in 2 ways, for example, as 247301322436 + 164929393225 = 497294^2 + 406115^2 .

It is a cyclic number.

It is not a de Polignac number, because 412230715661 - 2¹⁸ = 412230453517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412230715621) 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, 22343600 + ... + 22362041.

It is an arithmetic number, because the mean of its divisors is an integer number (103068857631).

Almost surely, 2^412230715661 is an apocalyptic number.

It is an amenable number.

412230715661 is a deficient number, since it is larger than the sum of its proper divisors (44714863).

412230715661 is an equidigital number, since it uses as much as digits as its factorization.

412230715661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44714862.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 412230715661 its reverse (166517032214), we get a palindrome (578747747875).

The spelling of 412230715661 in words is "four hundred twelve billion, two hundred thirty million, seven hundred fifteen thousand, six hundred sixty-one".