66761122 has 8 divisors (see below), whose sum is σ = 100188972. Its totient is φ = 33364800.

The previous prime is 66761119. The next prime is 66761129. The reversal of 66761122 is 22116766.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66732561 + 28561 = 8169^2 + 169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66761129) 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, 1579 + ... + 11662.

Almost surely, 2^66761122 is an apocalyptic number.

66761122 is a deficient number, since it is larger than the sum of its proper divisors (33427850).

66761122 is a wasteful number, since it uses less digits than its factorization.

66761122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15764.

The product of its digits is 6048, while the sum is 31.

The square root of 66761122 is about 8170.7479461797. The cubic root of 66761122 is about 405.6715414746.

Adding to 66761122 its reverse (22116766), we get a palindrome (88877888).

The spelling of 66761122 in words is "sixty-six million, seven hundred sixty-one thousand, one hundred twenty-two".