1015066886661 has 24 divisors (see below), whose sum is σ = 1471078132056. Its totient is φ = 674463928320.

The previous prime is 1015066886653. The next prime is 1015066886693. The reversal of 1015066886661 is 1666886605101.

It can be written as a sum of positive squares in 4 ways, for example, as 187667438436 + 827399448225 = 433206^2 + 909615^2 .

It is not a de Polignac number, because 1015066886661 - 2³ = 1015066886653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1015066886598 and 1015066886607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015066866661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28662181 + ... + 28697573.

It is an arithmetic number, because the mean of its divisors is an integer number (61294922169).

Almost surely, 2^{1015066886661} is an apocalyptic number.

It is an amenable number.

1015066886661 is a deficient number, since it is larger than the sum of its proper divisors (456011245395).

1015066886661 is a wasteful number, since it uses less digits than its factorization.

1015066886661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45893 (or 45890 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 1015066886661 in words is "one trillion, fifteen billion, sixty-six million, eight hundred eighty-six thousand, six hundred sixty-one".