66019496 has 16 divisors (see below), whose sum is σ = 124480800. Its totient is φ = 32824624.

The previous prime is 66019493. The next prime is 66019501. The reversal of 66019496 is 69491066.

It is not an unprimeable number, because it can be changed into a prime (66019493) 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, 21620 + ... + 24483.

It is an arithmetic number, because the mean of its divisors is an integer number (7780050).

Almost surely, 2^66019496 is an apocalyptic number.

It is an amenable number.

66019496 is a deficient number, since it is larger than the sum of its proper divisors (58461304).

66019496 is a wasteful number, since it uses less digits than its factorization.

66019496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46288 (or 46284 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 66019496 is about 8125.2382118926. The cubic root of 66019496 is about 404.1637900718.

The spelling of 66019496 in words is "sixty-six million, nineteen thousand, four hundred ninety-six".