453143612661 has 4 divisors (see below), whose sum is σ = 604191483552. Its totient is φ = 302095741772.

The previous prime is 453143612653. The next prime is 453143612711. The reversal of 453143612661 is 166216341354.

It is a happy number.

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 453143612661 - 2³ = 453143612653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453143612611) 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, 75523935441 + ... + 75523935446.

It is an arithmetic number, because the mean of its divisors is an integer number (151047870888).

Almost surely, 2^453143612661 is an apocalyptic number.

It is an amenable number.

453143612661 is a deficient number, since it is larger than the sum of its proper divisors (151047870891).

453143612661 is a wasteful number, since it uses less digits than its factorization.

453143612661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151047870890.

The product of its digits is 311040, while the sum is 42.

The spelling of 453143612661 in words is "four hundred fifty-three billion, one hundred forty-three million, six hundred twelve thousand, six hundred sixty-one".