1205326664430 has 128 divisors (see below), whose sum is σ = 3314605916160. Its totient is φ = 274790275200.

The previous prime is 1205326664401. The next prime is 1205326664459. The reversal of 1205326664430 is 344666235021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1205326664401) and next prime (1205326664459).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145443747 + ... + 145452033.

It is an arithmetic number, because the mean of its divisors is an integer number (25895358720).

Almost surely, 2^{1205326664430} is an apocalyptic number.

1205326664430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205326664430 is an abundant number, since it is smaller than the sum of its proper divisors (2109279251730).

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

1205326664430 is a wasteful number, since it uses less digits than its factorization.

1205326664430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10014.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 1205326664430 in words is "one trillion, two hundred five billion, three hundred twenty-six million, six hundred sixty-four thousand, four hundred thirty".