1600066 has 32 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 673920.

The previous prime is 1600061. The next prime is 1600069. The reversal of 1600066 is 6600061.

It is a happy number.

It is a super-2 number, since 2×1600066² = 5120422408712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600061) 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, 20215 + ... + 20293.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2^1600066 is an apocalyptic number.

1600066 is a deficient number, since it is larger than the sum of its proper divisors (1222334).

1600066 is a wasteful number, since it uses less digits than its factorization.

1600066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1600066 is about 1264.9371525890. The cubic root of 1600066 is about 116.9623177162.

The spelling of 1600066 in words is "one million, six hundred thousand, sixty-six".