66471026474466 has 48 divisors (see below), whose sum is σ = 144352660246080. Its totient is φ = 22105918902240.

The previous prime is 66471026474449. The next prime is 66471026474473. The reversal of 66471026474466 is 66447462017466.

66471026474466 is a `hidden beast` number, since 6 + 6 + 4 + 7 + 102 + 64 + 7 + 4 + 466 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347299956 + ... + 347491296.

It is an arithmetic number, because the mean of its divisors is an integer number (3007347088460).

Almost surely, 2^{66471026474466} is an apocalyptic number.

66471026474466 is an abundant number, since it is smaller than the sum of its proper divisors (77881633771614).

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

66471026474466 is a wasteful number, since it uses less digits than its factorization.

66471026474466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235751 (or 235748 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 63.

The spelling of 66471026474466 in words is "sixty-six trillion, four hundred seventy-one billion, twenty-six million, four hundred seventy-four thousand, four hundred sixty-six".