16442066722477 has 16 divisors (see below), whose sum is σ = 18284988662208. Its totient is φ = 14657477402880.

The previous prime is 16442066722457. The next prime is 16442066722483. The reversal of 16442066722477 is 77422766024461.

It is a cyclic number.

It is not a de Polignac number, because 16442066722477 - 2⁷ = 16442066722349 is a prime.

It is a super-3 number, since 3×16442066722477³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442066722447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6436743 + ... + 8620660.

It is an arithmetic number, because the mean of its divisors is an integer number (1142811791388).

Almost surely, 2^{16442066722477} is an apocalyptic number.

It is an amenable number.

16442066722477 is a deficient number, since it is larger than the sum of its proper divisors (1842921939731).

16442066722477 is a wasteful number, since it uses less digits than its factorization.

16442066722477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15059340.

The product of its (nonzero) digits is 37933056, while the sum is 58.

The spelling of 16442066722477 in words is "sixteen trillion, four hundred forty-two billion, sixty-six million, seven hundred twenty-two thousand, four hundred seventy-seven".