20613255398210 has 16 divisors (see below), whose sum is σ = 37104102616896. Its totient is φ = 8245248181488.

The previous prime is 20613255398209. The next prime is 20613255398227. The reversal of 20613255398210 is 1289355231602.

It is a happy number.

It is a super-2 number, since 2×20613255398210² (a number of 27 digits) contains 22 as substring.

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, 5124734 + ... + 8215193.

It is an arithmetic number, because the mean of its divisors is an integer number (2319006413556).

Almost surely, 2^{20613255398210} is an apocalyptic number.

20613255398210 is a deficient number, since it is larger than the sum of its proper divisors (16490847218686).

20613255398210 is a wasteful number, since it uses less digits than its factorization.

20613255398210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494457.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 20613255398210 in words is "twenty trillion, six hundred thirteen billion, two hundred fifty-five million, three hundred ninety-eight thousand, two hundred ten".