66150838 has 16 divisors (see below), whose sum is σ = 110307456. Its totient is φ = 29545920.

The previous prime is 66150809. The next prime is 66150839. The reversal of 66150838 is 83805166.

It is a junction number, because it is equal to n+sod(n) for n = 66150797 and 66150806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66150839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40231 + ... + 41842.

It is an arithmetic number, because the mean of its divisors is an integer number (6894216).

Almost surely, 2^66150838 is an apocalyptic number.

66150838 is a deficient number, since it is larger than the sum of its proper divisors (44156618).

66150838 is a wasteful number, since it uses less digits than its factorization.

66150838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82119.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 66150838 is about 8133.3165436985. The cubic root of 66150838 is about 404.4316327560.

The spelling of 66150838 in words is "sixty-six million, one hundred fifty thousand, eight hundred thirty-eight".