1671411066618 has 16 divisors (see below), whose sum is σ = 3374063462880. Its totient is φ = 551930133936.

The previous prime is 1671411066607. The next prime is 1671411066641. The reversal of 1671411066618 is 8166601141761.

It is a super-2 number, since 2×1671411066618² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301721373 + ... + 1301722656.

It is an arithmetic number, because the mean of its divisors is an integer number (210878966430).

Almost surely, 2^{1671411066618} is an apocalyptic number.

1671411066618 is an abundant number, since it is smaller than the sum of its proper divisors (1702652396262).

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

1671411066618 is a wasteful number, since it uses less digits than its factorization.

1671411066618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603444141.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 1671411066618 in words is "one trillion, six hundred seventy-one billion, four hundred eleven million, sixty-six thousand, six hundred eighteen".