1606432707880 has 512 divisors, whose sum is σ = 5179209154560. Its totient is φ = 431554314240.

The previous prime is 1606432707839. The next prime is 1606432707883. The reversal of 1606432707880 is 887072346061.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (1606432707883) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 86437069 + ... + 86455651.

It is an arithmetic number, because the mean of its divisors is an integer number (10115642880).

Almost surely, 2^{1606432707880} is an apocalyptic number.

1606432707880 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 1606432707880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2589604577280).

1606432707880 is an abundant number, since it is smaller than the sum of its proper divisors (3572776446680).

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

1606432707880 is a wasteful number, since it uses less digits than its factorization.

1606432707880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18769 (or 18765 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 1606432707880 in words is "one trillion, six hundred six billion, four hundred thirty-two million, seven hundred seven thousand, eight hundred eighty".