66502070 has 8 divisors (see below), whose sum is σ = 119703744. Its totient is φ = 26600824.

The previous prime is 66502069. The next prime is 66502081. The reversal of 66502070 is 7020566.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3325094 + ... + 3325113.

It is an arithmetic number, because the mean of its divisors is an integer number (14962968).

Almost surely, 2^66502070 is an apocalyptic number.

66502070 is a deficient number, since it is larger than the sum of its proper divisors (53201674).

66502070 is a wasteful number, since it uses less digits than its factorization.

66502070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650214.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 66502070 is about 8154.8801340056. The cubic root of 66502070 is about 405.1461546371.

The spelling of 66502070 in words is "sixty-six million, five hundred two thousand, seventy".