66126738 has 8 divisors (see below), whose sum is σ = 132253488. Its totient is φ = 22042244.

The previous prime is 66126701. The next prime is 66126769. The reversal of 66126738 is 83762166.

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

66126738 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66126696 and 66126705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510556 + ... + 5510567.

It is an arithmetic number, because the mean of its divisors is an integer number (16531686).

Almost surely, 2^66126738 is an apocalyptic number.

66126738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66126738 is a wasteful number, since it uses less digits than its factorization.

66126738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021128.

The product of its digits is 72576, while the sum is 39.

The square root of 66126738 is about 8131.8348482984. The cubic root of 66126738 is about 404.3825127623.

The spelling of 66126738 in words is "sixty-six million, one hundred twenty-six thousand, seven hundred thirty-eight".