1662202080 has 768 divisors, whose sum is σ = 7664025600. Its totient is φ = 325969920.

The previous prime is 1662202049. The next prime is 1662202121. The reversal of 1662202080 is 802022661.

1662202080 is a `hidden beast` number, since 16 + 622 + 0 + 20 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6320029 + ... + 6320291.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2^1662202080 is an apocalyptic number.

1662202080 is a gapful number since it is divisible by the number (10) 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 1662202080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3832012800).

1662202080 is an abundant number, since it is smaller than the sum of its proper divisors (6001823520).

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

1662202080 is a wasteful number, since it uses less digits than its factorization.

1662202080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1662202080 is about 40770.1125826260. The cubic root of 1662202080 is about 1184.5714842206.

The spelling of 1662202080 in words is "one billion, six hundred sixty-two million, two hundred two thousand, eighty".