1601802761280 has 448 divisors, whose sum is σ = 5507485332480. Its totient is φ = 392970240000.

The previous prime is 1601802761269. The next prime is 1601802761281. The reversal of 1601802761280 is 821672081061.

It is not an unprimeable number, because it can be changed into a prime (1601802761281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130211130 + ... + 130223430.

Almost surely, 2^{1601802761280} is an apocalyptic number.

1601802761280 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 1601802761280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2753742666240).

1601802761280 is an abundant number, since it is smaller than the sum of its proper divisors (3905682571200).

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

1601802761280 is a wasteful number, since it uses less digits than its factorization.

1601802761280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518 (or 12508 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 1601802761280 in words is "one trillion, six hundred one billion, eight hundred two million, seven hundred sixty-one thousand, two hundred eighty".