6606390000 has 400 divisors, whose sum is σ = 24649509632. Its totient is φ = 1492992000.

The previous prime is 6606389987. The next prime is 6606390017. The reversal of 6606390000 is 936066.

It is a tau number, because it is divible by the number of its divisors (400).

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

It is a self number, because there is not a number n which added to its sum of digits gives 6606390000.

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, 34229904 + ... + 34230096.

Almost surely, 2^6606390000 is an apocalyptic number.

6606390000 is a gapful number since it is divisible by the number (60) 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 6606390000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12324754816).

6606390000 is an abundant number, since it is smaller than the sum of its proper divisors (18043119632).

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

6606390000 is a wasteful number, since it uses less digits than its factorization.

6606390000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 6606390000 is about 81279.7022632342. The cubic root of 6606390000 is about 1876.3826246467.

The spelling of 6606390000 in words is "six billion, six hundred six million, three hundred ninety thousand".