450200322251661 has 8 divisors (see below), whose sum is σ = 631860101405920. Its totient is φ = 284337045632592.

The previous prime is 450200322251657. The next prime is 450200322251681. The reversal of 450200322251661 is 166152223002054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 450200322251661 - 2² = 450200322251657 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 (450200322251681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3949125633730 + ... + 3949125633843.

It is an arithmetic number, because the mean of its divisors is an integer number (78982512675740).

Almost surely, 2^{450200322251661} is an apocalyptic number.

It is an amenable number.

450200322251661 is a deficient number, since it is larger than the sum of its proper divisors (181659779154259).

450200322251661 is a wasteful number, since it uses less digits than its factorization.

450200322251661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898251267595.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 450200322251661 in words is "four hundred fifty trillion, two hundred billion, three hundred twenty-two million, two hundred fifty-one thousand, six hundred sixty-one".