1016545646321 has 8 divisors (see below), whose sum is σ = 1061808646080. Its totient is φ = 971963293392.

The previous prime is 1016545646287. The next prime is 1016545646329. The reversal of 1016545646321 is 1236465456101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016545646321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016545646329) 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, 170158655 + ... + 170164628.

It is an arithmetic number, because the mean of its divisors is an integer number (132726080760).

Almost surely, 2^{1016545646321} is an apocalyptic number.

It is an amenable number.

1016545646321 is a deficient number, since it is larger than the sum of its proper divisors (45262999759).

1016545646321 is a wasteful number, since it uses less digits than its factorization.

1016545646321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340323415.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1016545646321 in words is "one trillion, sixteen billion, five hundred forty-five million, six hundred forty-six thousand, three hundred twenty-one".