2111664134036 has 6 divisors (see below), whose sum is σ = 3695412234570. Its totient is φ = 1055832067016.

The previous prime is 2111664134011. The next prime is 2111664134059. The reversal of 2111664134036 is 6304314661112.

It can be written as a sum of positive squares in only one way, i.e., 2018547611536 + 93116522500 = 1420756^2 + 305150^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263958016751 + ... + 263958016758.

It is an arithmetic number, because the mean of its divisors is an integer number (615902039095).

Almost surely, 2^{2111664134036} is an apocalyptic number.

It is an amenable number.

2111664134036 is a deficient number, since it is larger than the sum of its proper divisors (1583748100534).

2111664134036 is a wasteful number, since it uses less digits than its factorization.

2111664134036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527916033513 (or 527916033511 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 2111664134036 its reverse (6304314661112), we get a palindrome (8415978795148).

The spelling of 2111664134036 in words is "two trillion, one hundred eleven billion, six hundred sixty-four million, one hundred thirty-four thousand, thirty-six".