1006454353561 has 4 divisors (see below), whose sum is σ = 1018580309712. Its totient is φ = 994328397412.

The previous prime is 1006454353559. The next prime is 1006454353577. The reversal of 1006454353561 is 1653534546001.

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 1006454353561 - 2¹ = 1006454353559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006454353661) 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, 6062977951 + ... + 6062978116.

It is an arithmetic number, because the mean of its divisors is an integer number (254645077428).

Almost surely, 2^{1006454353561} is an apocalyptic number.

It is an amenable number.

1006454353561 is a deficient number, since it is larger than the sum of its proper divisors (12125956151).

1006454353561 is an equidigital number, since it uses as much as digits as its factorization.

1006454353561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125956150.

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 1006454353561 its reverse (1653534546001), we get a palindrome (2659988899562).

The spelling of 1006454353561 in words is "one trillion, six billion, four hundred fifty-four million, three hundred fifty-three thousand, five hundred sixty-one".