1650066611660 has 24 divisors (see below), whose sum is σ = 3647515668720. Its totient is φ = 625288400064.

The previous prime is 1650066611659. The next prime is 1650066611681. The reversal of 1650066611660 is 661166600561.

It is a super-2 number, since 2×1650066611660² (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 7 ways as a sum of consecutive naturals, for example, 2171139899 + ... + 2171140658.

It is an arithmetic number, because the mean of its divisors is an integer number (151979819530).

Almost surely, 2^{1650066611660} is an apocalyptic number.

1650066611660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1650066611660 is an abundant number, since it is smaller than the sum of its proper divisors (1997449057060).

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

1650066611660 is a wasteful number, since it uses less digits than its factorization.

1650066611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342280585 (or 4342280583 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1650066611660 in words is "one trillion, six hundred fifty billion, sixty-six million, six hundred eleven thousand, six hundred sixty".