66833541 has 12 divisors (see below), whose sum is σ = 96658380. Its totient is φ = 44499840.

The previous prime is 66833537. The next prime is 66833597. The reversal of 66833541 is 14533866.

It can be written as a sum of positive squares in 2 ways, for example, as 11390625 + 55442916 = 3375^2 + 7446^2 .

It is not a de Polignac number, because 66833541 - 2² = 66833537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66833496 and 66833505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66833531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3715 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (8054865).

Almost surely, 2^66833541 is an apocalyptic number.

It is an amenable number.

66833541 is a deficient number, since it is larger than the sum of its proper divisors (29824839).

66833541 is a wasteful number, since it uses less digits than its factorization.

66833541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316 (or 9313 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 66833541 is about 8175.1783466784. The cubic root of 66833541 is about 405.8181722790.

The spelling of 66833541 in words is "sixty-six million, eight hundred thirty-three thousand, five hundred forty-one".