16442626157457 has 16 divisors (see below), whose sum is σ = 22564658195520. Its totient is φ = 10643706662400.

The previous prime is 16442626157437. The next prime is 16442626157543. The reversal of 16442626157457 is 75475162624461.

16442626157457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16442626157457 - 2⁶ = 16442626157393 is a prime.

It is a super-3 number, since 3×16442626157457³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16442626157457.

It is not an unprimeable number, because it can be changed into a prime (16442626157417) 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, 316751032 + ... + 316802937.

It is an arithmetic number, because the mean of its divisors is an integer number (1410291137220).

Almost surely, 2^{16442626157457} is an apocalyptic number.

It is an amenable number.

16442626157457 is a deficient number, since it is larger than the sum of its proper divisors (6122032038063).

16442626157457 is a wasteful number, since it uses less digits than its factorization.

16442626157457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633554224.

The product of its digits is 67737600, while the sum is 60.

The spelling of 16442626157457 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-six million, one hundred fifty-seven thousand, four hundred fifty-seven".