66500676 has 120 divisors (see below), whose sum is σ = 194173056. Its totient is φ = 19673280.

The previous prime is 66500669. The next prime is 66500689. The reversal of 66500676 is 67600566.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66500676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 167310 + ... + 167706.

Almost surely, 2^66500676 is an apocalyptic number.

66500676 is a gapful number since it is divisible by the number (66) 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 66500676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97086528).

66500676 is an abundant number, since it is smaller than the sum of its proper divisors (127672380).

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

66500676 is a wasteful number, since it uses less digits than its factorization.

66500676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 66500676 is about 8154.7946632641. The cubic root of 66500676 is about 405.1433237594.

It can be divided in two parts, 66500 and 676, that added together give a palindrome (67176).

The spelling of 66500676 in words is "sixty-six million, five hundred thousand, six hundred seventy-six".