1045889871655 has 16 divisors (see below), whose sum is σ = 1257659792640. Its totient is φ = 834985536768.

The previous prime is 1045889871629. The next prime is 1045889871721. The reversal of 1045889871655 is 5561789885401.

It is a cyclic number.

It is not a de Polignac number, because 1045889871655 - 2¹³ = 1045889863463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5174779 + ... + 5373091.

It is an arithmetic number, because the mean of its divisors is an integer number (78603737040).

Almost surely, 2^{1045889871655} is an apocalyptic number.

1045889871655 is a deficient number, since it is larger than the sum of its proper divisors (211769920985).

1045889871655 is a wasteful number, since it uses less digits than its factorization.

1045889871655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200490.

The product of its (nonzero) digits is 96768000, while the sum is 67.

The spelling of 1045889871655 in words is "one trillion, forty-five billion, eight hundred eighty-nine million, eight hundred seventy-one thousand, six hundred fifty-five".