66021110235050 has 12 divisors (see below), whose sum is σ = 122799265037286. Its totient is φ = 26408444094000.

The previous prime is 66021110235029. The next prime is 66021110235109. The reversal of 66021110235050 is 5053201112066.

It can be written as a sum of positive squares in 3 ways, for example, as 61904338220761 + 4116772014289 = 7867931^2 + 2028983^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66021110234998 and 66021110235016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 660211102301 + ... + 660211102400.

Almost surely, 2^{66021110235050} is an apocalyptic number.

66021110235050 is a deficient number, since it is larger than the sum of its proper divisors (56778154802236).

66021110235050 is a wasteful number, since it uses less digits than its factorization.

66021110235050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320422204713 (or 1320422204708 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 66021110235050 in words is "sixty-six trillion, twenty-one billion, one hundred ten million, two hundred thirty-five thousand, fifty".