66567146144 has 24 divisors (see below), whose sum is σ = 131062426740. Its totient is φ = 33281450496.

The previous prime is 66567146111. The next prime is 66567146189. The reversal of 66567146144 is 44164176566.

It can be written as a sum of positive squares in 2 ways, for example, as 56935686544 + 9631459600 = 238612^2 + 98140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66567146092 and 66567146101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524162 + ... + 638654.

Almost surely, 2^66567146144 is an apocalyptic number.

It is an amenable number.

66567146144 is a deficient number, since it is larger than the sum of its proper divisors (64495280596).

66567146144 is a wasteful number, since it uses less digits than its factorization.

66567146144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132672 (or 132664 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 66567146144 in words is "sixty-six billion, five hundred sixty-seven million, one hundred forty-six thousand, one hundred forty-four".