1065906197730 has 288 divisors, whose sum is σ = 3080378875392. Its totient is φ = 255513646080.

The previous prime is 1065906197701. The next prime is 1065906197731. The reversal of 1065906197730 is 377916095601.

It is a happy number.

1065906197730 is a `hidden beast` number, since 1 + 0 + 6 + 590 + 6 + 19 + 7 + 7 + 30 = 666.

It is a super-2 number, since 2×1065906197730² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065906197731) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 746955277 + ... + 746956703.

It is an arithmetic number, because the mean of its divisors is an integer number (10695759984).

Almost surely, 2^{1065906197730} is an apocalyptic number.

1065906197730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065906197730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540189437696).

1065906197730 is an abundant number, since it is smaller than the sum of its proper divisors (2014472677662).

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

1065906197730 is a wasteful number, since it uses less digits than its factorization.

1065906197730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 1065906197730 in words is "one trillion, sixty-five billion, nine hundred six million, one hundred ninety-seven thousand, seven hundred thirty".