66670590783 has 16 divisors (see below), whose sum is σ = 91310476640. Its totient is φ = 43239246336.

The previous prime is 66670590773. The next prime is 66670590799. The reversal of 66670590783 is 38709507666.

It is not a de Polignac number, because 66670590783 - 2⁶ = 66670590719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66670590743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754803 + ... + 838491.

It is an arithmetic number, because the mean of its divisors is an integer number (5706904790).

Almost surely, 2^66670590783 is an apocalyptic number.

66670590783 is a deficient number, since it is larger than the sum of its proper divisors (24639885857).

66670590783 is a wasteful number, since it uses less digits than its factorization.

66670590783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90906.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 66670590783 in words is "sixty-six billion, six hundred seventy million, five hundred ninety thousand, seven hundred eighty-three".