1660824480 has 192 divisors, whose sum is σ = 6239213568. Its totient is φ = 363095040.

The previous prime is 1660824479. The next prime is 1660824481. The reversal of 1660824480 is 844280661.

It is an interprime number because it is at equal distance from previous prime (1660824479) and next prime (1660824481).

It is a super-3 number, since 3×1660824480³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1660824481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66535 + ... + 88025.

It is an arithmetic number, because the mean of its divisors is an integer number (32495904).

Almost surely, 2^1660824480 is an apocalyptic number.

1660824480 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 1660824480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3119606784).

1660824480 is an abundant number, since it is smaller than the sum of its proper divisors (4578389088).

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

1660824480 is a wasteful number, since it uses less digits than its factorization.

1660824480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21539 (or 21531 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 1660824480 is about 40753.2143517539. The cubic root of 1660824480 is about 1184.2441440167.

The spelling of 1660824480 in words is "one billion, six hundred sixty million, eight hundred twenty-four thousand, four hundred eighty".