20686620804230 has 32 divisors (see below), whose sum is σ = 38520209750400. Its totient is φ = 7989254404992.

The previous prime is 20686620804221. The next prime is 20686620804257. The reversal of 20686620804230 is 3240802668602.

It is a super-5 number, since 5×20686620804230⁵ (a number of 68 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62297219 + ... + 62628401.

It is an arithmetic number, because the mean of its divisors is an integer number (1203756554700).

Almost surely, 2^{20686620804230} is an apocalyptic number.

20686620804230 is a deficient number, since it is larger than the sum of its proper divisors (17833588946170).

20686620804230 is a wasteful number, since it uses less digits than its factorization.

20686620804230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546608.

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 20686620804230 in words is "twenty trillion, six hundred eighty-six billion, six hundred twenty million, eight hundred four thousand, two hundred thirty".