2061790581600 has 432 divisors, whose sum is σ = 7627999526784. Its totient is φ = 523348992000.

The previous prime is 2061790581583. The next prime is 2061790581619. The reversal of 2061790581600 is 61850971602.

2061790581600 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 7 + 9 + 0 + 581 + 60 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13539484 + ... + 13690916.

It is an arithmetic number, because the mean of its divisors is an integer number (17657406312).

Almost surely, 2^{2061790581600} is an apocalyptic number.

2061790581600 is a gapful number since it is divisible by the number (20) 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 2061790581600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3813999763392).

2061790581600 is an abundant number, since it is smaller than the sum of its proper divisors (5566208945184).

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

2061790581600 is a wasteful number, since it uses less digits than its factorization.

2061790581600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151551 (or 151535 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 2061790581600 in words is "two trillion, sixty-one billion, seven hundred ninety million, five hundred eighty-one thousand, six hundred".