1065656121616 has 20 divisors (see below), whose sum is σ = 2095525286032. Its totient is φ = 524875402656.

The previous prime is 1065656121581. The next prime is 1065656121653. The reversal of 1065656121616 is 6161216565601.

It is a super-2 number, since 2×1065656121616² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497040030 + ... + 497042173.

Almost surely, 2^{1065656121616} is an apocalyptic number.

1065656121616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1065656121616 is a deficient number, since it is larger than the sum of its proper divisors (1029869164416).

1065656121616 is an equidigital number, since it uses as much as digits as its factorization.

1065656121616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994082278 (or 994082272 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 1065656121616 in words is "one trillion, sixty-five billion, six hundred fifty-six million, one hundred twenty-one thousand, six hundred sixteen".