66259948 has 12 divisors (see below), whose sum is σ = 122775912. Its totient is φ = 31181120.

The previous prime is 66259943. The next prime is 66259951. The reversal of 66259948 is 84995266.

It is not an unprimeable number, because it can be changed into a prime (66259943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487138 + ... + 487273.

It is an arithmetic number, because the mean of its divisors is an integer number (10231326).

Almost surely, 2^66259948 is an apocalyptic number.

66259948 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66259948 is a deficient number, since it is larger than the sum of its proper divisors (56515964).

66259948 is a wasteful number, since it uses less digits than its factorization.

66259948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974432 (or 974430 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 66259948 is about 8140.0213758933. The cubic root of 66259948 is about 404.6538687724.

The spelling of 66259948 in words is "sixty-six million, two hundred fifty-nine thousand, nine hundred forty-eight".