2066142406172 has 24 divisors (see below), whose sum is σ = 4028155622400. Its totient is φ = 920721283776.

The previous prime is 2066142406127. The next prime is 2066142406189. The reversal of 2066142406172 is 2716042416602.

It is a happy number.

It is a congruent 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, 685058972 + ... + 685061987.

It is an arithmetic number, because the mean of its divisors is an integer number (167839817600).

Almost surely, 2^{2066142406172} is an apocalyptic number.

It is an amenable number.

2066142406172 is a deficient number, since it is larger than the sum of its proper divisors (1962013216228).

2066142406172 is a wasteful number, since it uses less digits than its factorization.

2066142406172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370121005 (or 1370121003 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 2066142406172 in words is "two trillion, sixty-six billion, one hundred forty-two million, four hundred six thousand, one hundred seventy-two".