66622032040 has 32 divisors (see below), whose sum is σ = 149937943680. Its totient is φ = 26641991232.

The previous prime is 66622032011. The next prime is 66622032067. The reversal of 66622032040 is 4023022666.

66622032040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66622031993 and 66622032011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53484 + ... + 368923.

It is an arithmetic number, because the mean of its divisors is an integer number (4685560740).

Almost surely, 2^66622032040 is an apocalyptic number.

It is an amenable number.

66622032040 is an abundant number, since it is smaller than the sum of its proper divisors (83315911640).

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

66622032040 is a wasteful number, since it uses less digits than its factorization.

66622032040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426361 (or 426357 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 66622032040 in words is "sixty-six billion, six hundred twenty-two million, thirty-two thousand, forty".