66083340 has 24 divisors (see below), whose sum is σ = 185033520. Its totient is φ = 17622208.

The previous prime is 66083333. The next prime is 66083359. The reversal of 66083340 is 4338066.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 66083298 and 66083307.

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, 550635 + ... + 550754.

It is an arithmetic number, because the mean of its divisors is an integer number (7709730).

Almost surely, 2^66083340 is an apocalyptic number.

66083340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66083340 is an abundant number, since it is smaller than the sum of its proper divisors (118950180).

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

66083340 is a wasteful number, since it uses less digits than its factorization.

66083340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101401 (or 1101399 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66083340 is about 8129.1660088843. The cubic root of 66083340 is about 404.2940299823.

The spelling of 66083340 in words is "sixty-six million, eighty-three thousand, three hundred forty".