1606272146666 has 16 divisors (see below), whose sum is σ = 2629104397920. Its totient is φ = 729940628880.

The previous prime is 1606272146663. The next prime is 1606272146669. The reversal of 1606272146666 is 6666412726061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1606272146663) and next prime (1606272146669).

It is a super-2 number, since 2×1606272146666² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1606272146663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9063956 + ... + 9239471.

It is an arithmetic number, because the mean of its divisors is an integer number (164319024870).

Almost surely, 2^{1606272146666} is an apocalyptic number.

1606272146666 is a deficient number, since it is larger than the sum of its proper divisors (1022832251254).

1606272146666 is a wasteful number, since it uses less digits than its factorization.

1606272146666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18307429.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 1606272146666 in words is "one trillion, six hundred six billion, two hundred seventy-two million, one hundred forty-six thousand, six hundred sixty-six".