66430014004 has 24 divisors (see below), whose sum is σ = 119194894728. Its totient is φ = 32375784960.

The previous prime is 66430013999. The next prime is 66430014029. The reversal of 66430014004 is 40041003466.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7293501604 + 59136512400 = 85402^2 + 243180^2 .

It is a super-2 number, since 2×66430014004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872 + ... + 364504.

It is an arithmetic number, because the mean of its divisors is an integer number (4966453947).

Almost surely, 2^66430014004 is an apocalyptic number.

It is an amenable number.

66430014004 is a deficient number, since it is larger than the sum of its proper divisors (52764880724).

66430014004 is a wasteful number, since it uses less digits than its factorization.

66430014004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363795 (or 363793 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 66430014004 in words is "sixty-six billion, four hundred thirty million, fourteen thousand, four".