20216711210672 has 10 divisors (see below), whose sum is σ = 39169877970708. Its totient is φ = 10108355605328.

The previous prime is 20216711210651. The next prime is 20216711210701. The reversal of 20216711210672 is 27601211761202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631772225318 + ... + 631772225349.

Almost surely, 2^{20216711210672} is an apocalyptic number.

It is an amenable number.

20216711210672 is a deficient number, since it is larger than the sum of its proper divisors (18953166760036).

20216711210672 is a wasteful number, since it uses less digits than its factorization.

20216711210672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263544450675 (or 1263544450669 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

Adding to 20216711210672 its reverse (27601211761202), we get a palindrome (47817922971874).

The spelling of 20216711210672 in words is "twenty trillion, two hundred sixteen billion, seven hundred eleven million, two hundred ten thousand, six hundred seventy-two".