66567145620484 has 24 divisors (see below), whose sum is σ = 116680644771768. Its totient is φ = 33229824245760.

The previous prime is 66567145620431. The next prime is 66567145620517. The reversal of 66567145620484 is 48402654176566.

It can be written as a sum of positive squares in 4 ways, for example, as 12340269688384 + 54226875932100 = 3512872^2 + 7363890^2 .

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, 46620432 + ... + 48027064.

It is an arithmetic number, because the mean of its divisors is an integer number (4861693532157).

Almost surely, 2^{66567145620484} is an apocalyptic number.

It is an amenable number.

66567145620484 is a deficient number, since it is larger than the sum of its proper divisors (50113499151284).

66567145620484 is a wasteful number, since it uses less digits than its factorization.

66567145620484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425735 (or 1425733 counting only the distinct ones).

The product of its (nonzero) digits is 232243200, while the sum is 64.

The spelling of 66567145620484 in words is "sixty-six trillion, five hundred sixty-seven billion, one hundred forty-five million, six hundred twenty thousand, four hundred eighty-four".