16021547034645 has 32 divisors (see below), whose sum is σ = 26077923561600. Its totient is φ = 8397108602624.

The previous prime is 16021547034643. The next prime is 16021547034671. The reversal of 16021547034645 is 54643074512061.

It is a cyclic number.

It is not a de Polignac number, because 16021547034645 - 2¹ = 16021547034643 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16021547034594 and 16021547034603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16021547034643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537162 + ... + 5686091.

It is an arithmetic number, because the mean of its divisors is an integer number (814935111300).

Almost surely, 2^{16021547034645} is an apocalyptic number.

16021547034645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16021547034645 is a deficient number, since it is larger than the sum of its proper divisors (10056376526955).

16021547034645 is a wasteful number, since it uses less digits than its factorization.

16021547034645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226229.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 16021547034645 in words is "sixteen trillion, twenty-one billion, five hundred forty-seven million, thirty-four thousand, six hundred forty-five".