66031460 has 48 divisors (see below), whose sum is σ = 159243840. Its totient is φ = 22746240.

The previous prime is 66031447. The next prime is 66031499. The reversal of 66031460 is 6413066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3719 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (3317580).

Almost surely, 2^66031460 is an apocalyptic number.

It is an amenable number.

66031460 is an abundant number, since it is smaller than the sum of its proper divisors (93212380).

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

66031460 is a wasteful number, since it uses less digits than its factorization.

66031460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836 (or 15834 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 66031460 is about 8125.9744031101. The cubic root of 66031460 is about 404.1882026762.

The spelling of 66031460 in words is "sixty-six million, thirty-one thousand, four hundred sixty".