1201782043560 has 512 divisors, whose sum is σ = 4297036262400. Its totient is φ = 263191265280.

The previous prime is 1201782043559. The next prime is 1201782043571. The reversal of 1201782043560 is 653402871021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 676297392 + ... + 676299168.

It is an arithmetic number, because the mean of its divisors is an integer number (8392648950).

Almost surely, 2^{1201782043560} is an apocalyptic number.

1201782043560 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 1201782043560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148518131200).

1201782043560 is an abundant number, since it is smaller than the sum of its proper divisors (3095254218840).

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

1201782043560 is a wasteful number, since it uses less digits than its factorization.

1201782043560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 1201782043560 in words is "one trillion, two hundred one billion, seven hundred eighty-two million, forty-three thousand, five hundred sixty".