66653453054356 has 24 divisors (see below), whose sum is σ = 134626776471936. Its totient is φ = 28282936231200.

The previous prime is 66653453054351. The next prime is 66653453054369. The reversal of 66653453054356 is 65345035435666.

It is a junction number, because it is equal to n+sod(n) for n = 66653453054294 and 66653453054303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66653453054351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11784553936 + ... + 11784559591.

It is an arithmetic number, because the mean of its divisors is an integer number (5609449019664).

Almost surely, 2^{66653453054356} is an apocalyptic number.

It is an amenable number.

66653453054356 is an abundant number, since it is smaller than the sum of its proper divisors (67973323417580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66653453054356 is a wasteful number, since it uses less digits than its factorization.

66653453054356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569113639 (or 23569113637 counting only the distinct ones).

The product of its (nonzero) digits is 349920000, while the sum is 61.

The spelling of 66653453054356 in words is "sixty-six trillion, six hundred fifty-three billion, four hundred fifty-three million, fifty-four thousand, three hundred fifty-six".