66954104480 has 24 divisors (see below), whose sum is σ = 158179072212. Its totient is φ = 26781641728.

The previous prime is 66954104479. The next prime is 66954104509. The reversal of 66954104480 is 8440145966.

It is a happy number.

66954104480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62374063504 + 4580040976 = 249748^2 + 67676^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209231417 + ... + 209231736.

Almost surely, 2^66954104480 is an apocalyptic number.

It is an amenable number.

66954104480 is an abundant number, since it is smaller than the sum of its proper divisors (91224967732).

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

66954104480 is a wasteful number, since it uses less digits than its factorization.

66954104480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418463168 (or 418463160 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 66954104480 in words is "sixty-six billion, nine hundred fifty-four million, one hundred four thousand, four hundred eighty".