20107211161552 has 10 divisors (see below), whose sum is σ = 38957721625538. Its totient is φ = 10053605580768.

The previous prime is 20107211161489. The next prime is 20107211161603. The reversal of 20107211161552 is 25516111270102.

It can be written as a sum of positive squares in only one way, i.e., 18693309427776 + 1413901733776 = 4323576^2 + 1189076^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628350348783 + ... + 628350348814.

Almost surely, 2^{20107211161552} is an apocalyptic number.

It is an amenable number.

20107211161552 is a deficient number, since it is larger than the sum of its proper divisors (18850510463986).

20107211161552 is a wasteful number, since it uses less digits than its factorization.

20107211161552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256700697605 (or 1256700697599 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 34.

The spelling of 20107211161552 in words is "twenty trillion, one hundred seven billion, two hundred eleven million, one hundred sixty-one thousand, five hundred fifty-two".