211101072956545 has 8 divisors (see below), whose sum is σ = 253324088056296. Its totient is φ = 168878991359616.

The previous prime is 211101072956513. The next prime is 211101072956597. The reversal of 211101072956545 is 545659270101112.

It can be written as a sum of positive squares in 4 ways, for example, as 85521952804864 + 125579120151681 = 9247808^2 + 11206209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211101072956545 - 2⁵ = 211101072956513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232878102 + ... + 233782831.

It is an arithmetic number, because the mean of its divisors is an integer number (31665511007037).

Almost surely, 2^{211101072956545} is an apocalyptic number.

It is an amenable number.

211101072956545 is a deficient number, since it is larger than the sum of its proper divisors (42223015099751).

211101072956545 is an equidigital number, since it uses as much as digits as its factorization.

211101072956545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466751411.

The product of its (nonzero) digits is 756000, while the sum is 49.

The spelling of 211101072956545 in words is "two hundred eleven trillion, one hundred one billion, seventy-two million, nine hundred fifty-six thousand, five hundred forty-five".