20686011370 has 16 divisors (see below), whose sum is σ = 37236464640. Its totient is φ = 8274039184.

The previous prime is 20686011361. The next prime is 20686011397. The reversal of 20686011370 is 7311068602.

It is a super-2 number, since 2×20686011370² (a number of 21 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, 390279 + ... + 440101.

It is an arithmetic number, because the mean of its divisors is an integer number (2327279040).

Almost surely, 2^20686011370 is an apocalyptic number.

20686011370 is a deficient number, since it is larger than the sum of its proper divisors (16550453270).

20686011370 is a wasteful number, since it uses less digits than its factorization.

20686011370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91349.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 20686011370 its reverse (7311068602), we get a palindrome (27997079972).

The spelling of 20686011370 in words is "twenty billion, six hundred eighty-six million, eleven thousand, three hundred seventy".