1662682620 has 96 divisors (see below), whose sum is σ = 4947759936. Its totient is φ = 415744000.

The previous prime is 1662682601. The next prime is 1662682631. The reversal of 1662682620 is 262862661.

1662682620 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283720 + ... + 289520.

It is an arithmetic number, because the mean of its divisors is an integer number (51539166).

Almost surely, 2^1662682620 is an apocalyptic number.

1662682620 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 1662682620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2473879968).

1662682620 is an abundant number, since it is smaller than the sum of its proper divisors (3285077316).

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

1662682620 is a wasteful number, since it uses less digits than its factorization.

1662682620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111 (or 6109 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1662682620 is about 40776.0054443787. The cubic root of 1662682620 is about 1184.6856258046.

The spelling of 1662682620 in words is "one billion, six hundred sixty-two million, six hundred eighty-two thousand, six hundred twenty".