1611642145211 has 8 divisors (see below), whose sum is σ = 1841885060064. Its totient is φ = 1381401311040.

The previous prime is 1611642145189. The next prime is 1611642145213. The reversal of 1611642145211 is 1125412461161.

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 1611642145211 - 2¹⁴ = 1611642128827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1611642145213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874741 + ... + 2595753.

It is an arithmetic number, because the mean of its divisors is an integer number (230235632508).

Almost surely, 2^{1611642145211} is an apocalyptic number.

1611642145211 is a deficient number, since it is larger than the sum of its proper divisors (230242914853).

1611642145211 is an equidigital number, since it uses as much as digits as its factorization.

1611642145211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040341.

The product of its digits is 11520, while the sum is 35.

The spelling of 1611642145211 in words is "one trillion, six hundred eleven billion, six hundred forty-two million, one hundred forty-five thousand, two hundred eleven".