1430220666564 has 18 divisors (see below), whose sum is σ = 3615280018350. Its totient is φ = 476740222176.

The previous prime is 1430220666557. The next prime is 1430220666577. The reversal of 1430220666564 is 4656660220341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1300188306564 + 130032360000 = 1140258^2 + 360600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19864175889 + ... + 19864175960.

Almost surely, 2^{1430220666564} is an apocalyptic number.

It is an amenable number.

1430220666564 is an abundant number, since it is smaller than the sum of its proper divisors (2185059351786).

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

1430220666564 is a wasteful number, since it uses less digits than its factorization.

1430220666564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39728351859 (or 39728351854 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 1430220666564 in words is "one trillion, four hundred thirty billion, two hundred twenty million, six hundred sixty-six thousand, five hundred sixty-four".