66861482 has 8 divisors (see below), whose sum is σ = 103527552. Its totient is φ = 32352300.

The previous prime is 66861409. The next prime is 66861491. The reversal of 66861482 is 28416866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539144 + ... + 539267.

It is an arithmetic number, because the mean of its divisors is an integer number (12940944).

Almost surely, 2^66861482 is an apocalyptic number.

66861482 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

66861482 is a deficient number, since it is larger than the sum of its proper divisors (36666070).

66861482 is a wasteful number, since it uses less digits than its factorization.

66861482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078444.

The product of its digits is 110592, while the sum is 41.

The square root of 66861482 is about 8176.8870604895. The cubic root of 66861482 is about 405.8747176682.

The spelling of 66861482 in words is "sixty-six million, eight hundred sixty-one thousand, four hundred eighty-two".