66463418 has 32 divisors (see below), whose sum is σ = 118886400. Its totient is φ = 27264384.

The previous prime is 66463393. The next prime is 66463429. The reversal of 66463418 is 81436466.

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, 50918 + ... + 52206.

It is an arithmetic number, because the mean of its divisors is an integer number (3715200).

Almost surely, 2^66463418 is an apocalyptic number.

66463418 is a deficient number, since it is larger than the sum of its proper divisors (52422982).

66463418 is a wasteful number, since it uses less digits than its factorization.

66463418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454.

The product of its digits is 82944, while the sum is 38.

The square root of 66463418 is about 8152.5099202638. The cubic root of 66463418 is about 405.0676470857.

The spelling of 66463418 in words is "sixty-six million, four hundred sixty-three thousand, four hundred eighteen".