1634664352441 has 4 divisors (see below), whose sum is σ = 1635362630884. Its totient is φ = 1633966074000.

The previous prime is 1634664352429. The next prime is 1634664352457. The reversal of 1634664352441 is 1442534664361.

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 1432339814416 + 202324538025 = 1196804^2 + 449805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634664352441 - 2¹⁷ = 1634664221369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1634664352411) 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, 349135710 + ... + 349140391.

It is an arithmetic number, because the mean of its divisors is an integer number (408840657721).

Almost surely, 2^{1634664352441} is an apocalyptic number.

It is an amenable number.

1634664352441 is a deficient number, since it is larger than the sum of its proper divisors (698278443).

1634664352441 is an equidigital number, since it uses as much as digits as its factorization.

1634664352441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698278442.

The product of its digits is 4976640, while the sum is 49.

The spelling of 1634664352441 in words is "one trillion, six hundred thirty-four billion, six hundred sixty-four million, three hundred fifty-two thousand, four hundred forty-one".