66360738 has 8 divisors (see below), whose sum is σ = 132721488. Its totient is φ = 22120244.

The previous prime is 66360733. The next prime is 66360751. The reversal of 66360738 is 83706366.

It is a happy number.

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

66360738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66360696 and 66360705.

It is not an unprimeable number, because it can be changed into a prime (66360731) 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, 5530056 + ... + 5530067.

It is an arithmetic number, because the mean of its divisors is an integer number (16590186).

Almost surely, 2^66360738 is an apocalyptic number.

66360738 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.

66360738 is a wasteful number, since it uses less digits than its factorization.

66360738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060128.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 66360738 is about 8146.2100390304. The cubic root of 66360738 is about 404.8589418838.

The spelling of 66360738 in words is "sixty-six million, three hundred sixty thousand, seven hundred thirty-eight".