66982476 has 48 divisors (see below), whose sum is σ = 174480768. Its totient is φ = 19824000.

The previous prime is 66982427. The next prime is 66982483. The reversal of 66982476 is 67428966.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (3635016).

Almost surely, 2^66982476 is an apocalyptic number.

66982476 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 66982476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87240384).

66982476 is an abundant number, since it is smaller than the sum of its proper divisors (107498292).

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

66982476 is a wasteful number, since it uses less digits than its factorization.

66982476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862 (or 11860 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 66982476 is about 8184.2822531973. The cubic root of 66982476 is about 406.1193967236.

The spelling of 66982476 in words is "sixty-six million, nine hundred eighty-two thousand, four hundred seventy-six".