66105630621032 has 8 divisors (see below), whose sum is σ = 123948057414450. Its totient is φ = 33052815310512.

The previous prime is 66105630621013. The next prime is 66105630621071. The reversal of 66105630621032 is 23012603650166.

It can be written as a sum of positive squares in only one way, i.e., 64705067250916 + 1400563370116 = 8043946^2 + 1183454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4131601913807 + ... + 4131601913822.

Almost surely, 2^{66105630621032} is an apocalyptic number.

It is an amenable number.

66105630621032 is a deficient number, since it is larger than the sum of its proper divisors (57842426793418).

66105630621032 is a wasteful number, since it uses less digits than its factorization.

66105630621032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263203827635 (or 8263203827631 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 66105630621032 in words is "sixty-six trillion, one hundred five billion, six hundred thirty million, six hundred twenty-one thousand, thirty-two".