66565122234350 has 48 divisors (see below), whose sum is σ = 132445620937728. Its totient is φ = 24801462128640.

The previous prime is 66565122234343. The next prime is 66565122234371. The reversal of 66565122234350 is 5343222156566.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403587182 + ... + 403752081.

It is an arithmetic number, because the mean of its divisors is an integer number (2759283769536).

Almost surely, 2^{66565122234350} is an apocalyptic number.

66565122234350 is a deficient number, since it is larger than the sum of its proper divisors (65880498703378).

66565122234350 is a wasteful number, since it uses less digits than its factorization.

66565122234350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807339389 (or 807339384 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 50.

The spelling of 66565122234350 in words is "sixty-six trillion, five hundred sixty-five billion, one hundred twenty-two million, two hundred thirty-four thousand, three hundred fifty".