1667120615166 has 16 divisors (see below), whose sum is σ = 3348076259088. Its totient is φ = 553401033600.

The previous prime is 1667120615107. The next prime is 1667120615183. The reversal of 1667120615166 is 6615160217661.

It is a happy number.

It is a super-2 number, since 2×1667120615166² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 576457965 + ... + 576460856.

It is an arithmetic number, because the mean of its divisors is an integer number (209254766193).

Almost surely, 2^{1667120615166} is an apocalyptic number.

1667120615166 is an abundant number, since it is smaller than the sum of its proper divisors (1680955643922).

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

1667120615166 is a wasteful number, since it uses less digits than its factorization.

1667120615166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152919067.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 1667120615166 in words is "one trillion, six hundred sixty-seven billion, one hundred twenty million, six hundred fifteen thousand, one hundred sixty-six".