1061623819620 has 576 divisors, whose sum is σ = 4029239725056. Its totient is φ = 220299264000.

The previous prime is 1061623819589. The next prime is 1061623819637. The reversal of 1061623819620 is 269183261601.

1061623819620 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 6 + 2 + 3 + 8 + 19 + 620 = 666.

It is a super-2 number, since 2×1061623819620² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 265337620 + ... + 265341620.

It is an arithmetic number, because the mean of its divisors is an integer number (6995207856).

Almost surely, 2^{1061623819620} is an apocalyptic number.

1061623819620 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 1061623819620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014619862528).

1061623819620 is an abundant number, since it is smaller than the sum of its proper divisors (2967615905436).

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

1061623819620 is a wasteful number, since it uses less digits than its factorization.

1061623819620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 1061623819620 in words is "one trillion, sixty-one billion, six hundred twenty-three million, eight hundred nineteen thousand, six hundred twenty".