66128346010 has 16 divisors (see below), whose sum is σ = 119097664416. Its totient is φ = 26436529168.

The previous prime is 66128345989. The next prime is 66128346029. The reversal of 66128346010 is 1064382166.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832392 + ... + 1868131.

It is an arithmetic number, because the mean of its divisors is an integer number (7443604026).

Almost surely, 2^66128346010 is an apocalyptic number.

66128346010 is a deficient number, since it is larger than the sum of its proper divisors (52969318406).

66128346010 is a wasteful number, since it uses less digits than its factorization.

66128346010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702317.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 66128346010 in words is "sixty-six billion, one hundred twenty-eight million, three hundred forty-six thousand, ten".