20662323310 has 32 divisors (see below), whose sum is σ = 37408119840. Its totient is φ = 8216997888.

The previous prime is 20662323301. The next prime is 20662323313. The reversal of 20662323310 is 1332326602.

It is a super-2 number, since 2×20662323310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662323313) 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, 5265009 + ... + 5268931.

It is an arithmetic number, because the mean of its divisors is an integer number (1169003745).

Almost surely, 2^20662323310 is an apocalyptic number.

20662323310 is a deficient number, since it is larger than the sum of its proper divisors (16745796530).

20662323310 is a wasteful number, since it uses less digits than its factorization.

20662323310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6852.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 20662323310 its reverse (1332326602), we get a palindrome (21994649912).

The spelling of 20662323310 in words is "twenty billion, six hundred sixty-two million, three hundred twenty-three thousand, three hundred ten".