16442023643457 has 8 divisors (see below), whose sum is σ = 22678653301440. Its totient is φ = 10583371540560.

The previous prime is 16442023643447. The next prime is 16442023643473. The reversal of 16442023643457 is 75434632024461.

16442023643457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16442023643457 - 2³⁶ = 16373304166721 is a prime.

It is a super-3 number, since 3×16442023643457³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16442023643447) 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, 94494388669 + ... + 94494388842.

It is an arithmetic number, because the mean of its divisors is an integer number (2834831662680).

Almost surely, 2^{16442023643457} is an apocalyptic number.

It is an amenable number.

16442023643457 is a deficient number, since it is larger than the sum of its proper divisors (6236629657983).

16442023643457 is a wasteful number, since it uses less digits than its factorization.

16442023643457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188988777543.

The product of its (nonzero) digits is 11612160, while the sum is 51.

The spelling of 16442023643457 in words is "sixteen trillion, four hundred forty-two billion, twenty-three million, six hundred forty-three thousand, four hundred fifty-seven".