66351461 has 8 divisors (see below), whose sum is σ = 73048800. Its totient is φ = 59765040.

The previous prime is 66351437. The next prime is 66351463. The reversal of 66351461 is 16415366.

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

It is a cyclic number.

It is not a de Polignac number, because 66351461 - 2¹⁴ = 66335077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66351463) 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, 26471 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (9131100).

Almost surely, 2^66351461 is an apocalyptic number.

It is an amenable number.

66351461 is a deficient number, since it is larger than the sum of its proper divisors (6697339).

66351461 is a wasteful number, since it uses less digits than its factorization.

66351461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55459.

The product of its digits is 12960, while the sum is 32.

The square root of 66351461 is about 8145.6406132360. The cubic root of 66351461 is about 404.8400750480.

The spelling of 66351461 in words is "sixty-six million, three hundred fifty-one thousand, four hundred sixty-one".