1065115566618 has 32 divisors (see below), whose sum is σ = 2137975687872. Its totient is φ = 353748019200.

The previous prime is 1065115566611. The next prime is 1065115566653. The reversal of 1065115566618 is 8166655115601.

It is a super-2 number, since 2×1065115566618² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065115566611) 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, 20623588 + ... + 20675168.

It is an arithmetic number, because the mean of its divisors is an integer number (66811740246).

Almost surely, 2^{1065115566618} is an apocalyptic number.

1065115566618 is an abundant number, since it is smaller than the sum of its proper divisors (1072860121254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065115566618 is a wasteful number, since it uses less digits than its factorization.

1065115566618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64030.

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 1065115566618 in words is "one trillion, sixty-five billion, one hundred fifteen million, five hundred sixty-six thousand, six hundred eighteen".