66470882584860 has 240 divisors, whose sum is σ = 224586920290656. Its totient is φ = 16360229104128.

The previous prime is 66470882584823. The next prime is 66470882584867. The reversal of 66470882584860 is 6848528807466.

66470882584860 is a `hidden beast` number, since 6 + 6 + 47 + 0 + 88 + 25 + 8 + 486 + 0 = 666.

It is a super-2 number, since 2×66470882584860² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66470882584867) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 192674079 + ... + 193018761.

Almost surely, 2^{66470882584860} is an apocalyptic number.

66470882584860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66470882584860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112293460145328).

66470882584860 is an abundant number, since it is smaller than the sum of its proper divisors (158116037705796).

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

66470882584860 is a wasteful number, since it uses less digits than its factorization.

66470882584860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353874 (or 353863 counting only the distinct ones).

The product of its (nonzero) digits is 990904320, while the sum is 72.

The spelling of 66470882584860 in words is "sixty-six trillion, four hundred seventy billion, eight hundred eighty-two million, five hundred eighty-four thousand, eight hundred sixty".