66122335589554 has 24 divisors (see below), whose sum is σ = 104679355027968. Its totient is φ = 31320830845080.

The previous prime is 66122335589543. The next prime is 66122335589603. The reversal of 66122335589554 is 45598553322166.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98573239 + ... + 99241765.

It is an arithmetic number, because the mean of its divisors is an integer number (4361639792832).

Almost surely, 2^{66122335589554} is an apocalyptic number.

66122335589554 is a deficient number, since it is larger than the sum of its proper divisors (38557019438414).

66122335589554 is a wasteful number, since it uses less digits than its factorization.

66122335589554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805558 (or 805539 counting only the distinct ones).

The product of its digits is 233280000, while the sum is 64.

The spelling of 66122335589554 in words is "sixty-six trillion, one hundred twenty-two billion, three hundred thirty-five million, five hundred eighty-nine thousand, five hundred fifty-four".