1620060000 has 480 divisors, whose sum is σ = 5995680768. Its totient is φ = 380160000.

The previous prime is 1620059983. The next prime is 1620060011. The reversal of 1620060000 is 600261.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24179967 + ... + 24180033.

Almost surely, 2^1620060000 is an apocalyptic number.

1620060000 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 1620060000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2997840384).

1620060000 is an abundant number, since it is smaller than the sum of its proper divisors (4375620768).

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

1620060000 is a wasteful number, since it uses less digits than its factorization.

1620060000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1620060000 is about 40249.9689440874. The cubic root of 1620060000 is about 1174.4747916814.

Adding to 1620060000 its reverse (600261), we get a palindrome (1620660261).

The spelling of 1620060000 in words is "one billion, six hundred twenty million, sixty thousand".