1466665616 has 80 divisors (see below), whose sum is σ = 3272540544. Its totient is φ = 630761472.

The previous prime is 1466665559. The next prime is 1466665619. The reversal of 1466665616 is 6165666641.

It is a super-2 number, since 2×1466665616² = 4302216058313318912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1466665619) 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, 362195 + ... + 366221.

Almost surely, 2^1466665616 is an apocalyptic number.

1466665616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1466665616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636270272).

1466665616 is an abundant number, since it is smaller than the sum of its proper divisors (1805874928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1466665616 is a wasteful number, since it uses less digits than its factorization.

1466665616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168 (or 4162 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 1466665616 is about 38297.0705929318. The cubic root of 1466665616 is about 1136.1710092685.

The spelling of 1466665616 in words is "one billion, four hundred sixty-six million, six hundred sixty-five thousand, six hundred sixteen".