1430664561 has 12 divisors (see below), whose sum is σ = 2156364288. Its totient is φ = 912307704.

The previous prime is 1430664553. The next prime is 1430664577. The reversal of 1430664561 is 1654660341.

It is a happy number.

1430664561 is a `hidden beast` number, since 1 + 4 + 3 + 0 + 6 + 645 + 6 + 1 = 666.

It is not a de Polignac number, because 1430664561 - 2³ = 1430664553 is a prime.

It is a super-2 number, since 2×1430664561² = 4093602172202645442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1430664551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3455505 + ... + 3455918.

It is an arithmetic number, because the mean of its divisors is an integer number (179697024).

Almost surely, 2^1430664561 is an apocalyptic number.

It is an amenable number.

1430664561 is a deficient number, since it is larger than the sum of its proper divisors (725699727).

1430664561 is a wasteful number, since it uses less digits than its factorization.

1430664561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911452 (or 6911449 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1430664561 is about 37824.1267050543. The cubic root of 1430664561 is about 1126.7976687400.

The spelling of 1430664561 in words is "one billion, four hundred thirty million, six hundred sixty-four thousand, five hundred sixty-one".