20064780011386 has 16 divisors (see below), whose sum is σ = 32857294921920. Its totient is φ = 9113682734080.

The previous prime is 20064780011293. The next prime is 20064780011401. The reversal of 20064780011386 is 68311008746002.

It is a happy number.

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, 333560071 + ... + 333620218.

It is an arithmetic number, because the mean of its divisors is an integer number (2053580932620).

Almost surely, 2^{20064780011386} is an apocalyptic number.

20064780011386 is a deficient number, since it is larger than the sum of its proper divisors (12792514910534).

20064780011386 is a wasteful number, since it uses less digits than its factorization.

20064780011386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667181669.

The product of its (nonzero) digits is 387072, while the sum is 46.

Adding to 20064780011386 its reverse (68311008746002), we get a palindrome (88375788757388).

The spelling of 20064780011386 in words is "twenty trillion, sixty-four billion, seven hundred eighty million, eleven thousand, three hundred eighty-six".