2101100657156 has 6 divisors (see below), whose sum is σ = 3676926150030. Its totient is φ = 1050550328576.

The previous prime is 2101100657141. The next prime is 2101100657177. The reversal of 2101100657156 is 6517560011012.

It can be written as a sum of positive squares in only one way, i.e., 1919377493056 + 181723164100 = 1385416^2 + 426290^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262637582141 + ... + 262637582148.

It is an arithmetic number, because the mean of its divisors is an integer number (612821025005).

Almost surely, 2^{2101100657156} is an apocalyptic number.

It is an amenable number.

2101100657156 is a deficient number, since it is larger than the sum of its proper divisors (1575825492874).

2101100657156 is a wasteful number, since it uses less digits than its factorization.

2101100657156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525275164293 (or 525275164291 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

Adding to 2101100657156 its reverse (6517560011012), we get a palindrome (8618660668168).

The spelling of 2101100657156 in words is "two trillion, one hundred one billion, one hundred million, six hundred fifty-seven thousand, one hundred fifty-six".