66950465 has 8 divisors (see below), whose sum is σ = 80386368. Its totient is φ = 53529840.

The previous prime is 66950461. The next prime is 66950479. The reversal of 66950465 is 56405966.

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

It is not a de Polignac number, because 66950465 - 2² = 66950461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66950461) 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, 11204 + ... + 16106.

It is an arithmetic number, because the mean of its divisors is an integer number (10048296).

Almost surely, 2^66950465 is an apocalyptic number.

It is an amenable number.

66950465 is a deficient number, since it is larger than the sum of its proper divisors (13435903).

66950465 is a wasteful number, since it uses less digits than its factorization.

66950465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 66950465 is about 8182.3263806817. The cubic root of 66950465 is about 406.0546914440.

The spelling of 66950465 in words is "sixty-six million, nine hundred fifty thousand, four hundred sixty-five".