66459706476 has 24 divisors (see below), whose sum is σ = 158372067840. Its totient is φ = 21681889872.

The previous prime is 66459706463. The next prime is 66459706487. The reversal of 66459706476 is 67460795466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58917616 + ... + 58918743.

It is an arithmetic number, because the mean of its divisors is an integer number (6598836160).

Almost surely, 2^66459706476 is an apocalyptic number.

It is an amenable number.

66459706476 is an abundant number, since it is smaller than the sum of its proper divisors (91912361364).

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

66459706476 is a wasteful number, since it uses less digits than its factorization.

66459706476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117836413 (or 117836411 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 60.

The spelling of 66459706476 in words is "sixty-six billion, four hundred fifty-nine million, seven hundred six thousand, four hundred seventy-six".