66735653356 has 24 divisors (see below), whose sum is σ = 123673507776. Its totient is φ = 31400881920.

The previous prime is 66735653353. The next prime is 66735653399. The reversal of 66735653356 is 65335653766.

It is a junction number, because it is equal to n+sod(n) for n = 66735653297 and 66735653306.

It is not an unprimeable number, because it can be changed into a prime (66735653351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491050 + ... + 612046.

It is an arithmetic number, because the mean of its divisors is an integer number (5153062824).

Almost surely, 2^66735653356 is an apocalyptic number.

It is an amenable number.

66735653356 is a deficient number, since it is larger than the sum of its proper divisors (56937854420).

66735653356 is a wasteful number, since it uses less digits than its factorization.

66735653356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129129 (or 129127 counting only the distinct ones).

The product of its digits is 30618000, while the sum is 55.

The spelling of 66735653356 in words is "sixty-six billion, seven hundred thirty-five million, six hundred fifty-three thousand, three hundred fifty-six".