1646423305016 has 32 divisors (see below), whose sum is σ = 3614099942880. Its totient is φ = 688399987200.

The previous prime is 1646423304949. The next prime is 1646423305067. The reversal of 1646423305016 is 6105033246461.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358539365 + ... + 358543956.

It is an arithmetic number, because the mean of its divisors is an integer number (112940623215).

Almost surely, 2^{1646423305016} is an apocalyptic number.

It is an amenable number.

1646423305016 is an abundant number, since it is smaller than the sum of its proper divisors (1967676637864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1646423305016 is a wasteful number, since it uses less digits than its factorization.

1646423305016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717083375 (or 717083371 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 1646423305016 in words is "one trillion, six hundred forty-six billion, four hundred twenty-three million, three hundred five thousand, sixteen".