1662146061 has 16 divisors (see below), whose sum is σ = 2241005184. Its totient is φ = 1095755264.

The previous prime is 1662146051. The next prime is 1662146063. The reversal of 1662146061 is 1606412661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1662146061 - 2⁵ = 1662146029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662146063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100405 + ... + 115781.

It is an arithmetic number, because the mean of its divisors is an integer number (140062824).

Almost surely, 2^1662146061 is an apocalyptic number.

It is an amenable number.

1662146061 is a deficient number, since it is larger than the sum of its proper divisors (578859123).

1662146061 is a wasteful number, since it uses less digits than its factorization.

1662146061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1662146061 is about 40769.4255662255. The cubic root of 1662146061 is about 1184.5581767220.

The spelling of 1662146061 in words is "one billion, six hundred sixty-two million, one hundred forty-six thousand, sixty-one".