66013070654 has 8 divisors (see below), whose sum is σ = 101434718448. Its totient is φ = 32201497840.

The previous prime is 66013070633. The next prime is 66013070657. The reversal of 66013070654 is 45607031066.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66013070657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402518642 + ... + 402518805.

It is an arithmetic number, because the mean of its divisors is an integer number (12679339806).

Almost surely, 2^66013070654 is an apocalyptic number.

66013070654 is a deficient number, since it is larger than the sum of its proper divisors (35421647794).

66013070654 is a wasteful number, since it uses less digits than its factorization.

66013070654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805037490.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 66013070654 in words is "sixty-six billion, thirteen million, seventy thousand, six hundred fifty-four".