66948594 has 16 divisors (see below), whose sum is σ = 134200800. Its totient is φ = 22265600.

The previous prime is 66948587. The next prime is 66948619. The reversal of 66948594 is 49584966.

It is a super-2 number, since 2×66948594² = 8964228477153672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9732 + ... + 15119.

It is an arithmetic number, because the mean of its divisors is an integer number (8387550).

Almost surely, 2^66948594 is an apocalyptic number.

66948594 is an abundant number, since it is smaller than the sum of its proper divisors (67252206).

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

66948594 is a wasteful number, since it uses less digits than its factorization.

66948594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25305.

The product of its digits is 1866240, while the sum is 51.

The square root of 66948594 is about 8182.2120480956. The cubic root of 66948594 is about 406.0509088693.

The spelling of 66948594 in words is "sixty-six million, nine hundred forty-eight thousand, five hundred ninety-four".