1000166120061 has 16 divisors (see below), whose sum is σ = 1341603078144. Its totient is φ = 662753662704.

The previous prime is 1000166120053. The next prime is 1000166120069. The reversal of 1000166120061 is 1600216610001.

It is an interprime number because it is at equal distance from previous prime (1000166120053) and next prime (1000166120069).

It is not a de Polignac number, because 1000166120061 - 2³ = 1000166120053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000166120069) 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, 16446036 + ... + 16506738.

It is an arithmetic number, because the mean of its divisors is an integer number (83850192384).

Almost surely, 2^{1000166120061} is an apocalyptic number.

It is an amenable number.

1000166120061 is a deficient number, since it is larger than the sum of its proper divisors (341436958083).

1000166120061 is a wasteful number, since it uses less digits than its factorization.

1000166120061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93760.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 1000166120061 in words is "one trillion, one hundred sixty-six million, one hundred twenty thousand, sixty-one".