1611245151101 has 2 divisors, whose sum is σ = 1611245151102. Its totient is φ = 1611245151100.

The previous prime is 1611245151077. The next prime is 1611245151119. The reversal of 1611245151101 is 1011515421161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086960545476 + 524284605625 = 1042574^2 + 724075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611245151101 - 2⁶ = 1611245151037 is a prime.

It is a super-2 number, since 2×1611245151101² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1611245151181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805622575550 + 805622575551.

It is an arithmetic number, because the mean of its divisors is an integer number (805622575551).

Almost surely, 2^{1611245151101} is an apocalyptic number.

It is an amenable number.

1611245151101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611245151101 is an equidigital number, since it uses as much as digits as its factorization.

1611245151101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 29.

The spelling of 1611245151101 in words is "one trillion, six hundred eleven billion, two hundred forty-five million, one hundred fifty-one thousand, one hundred one".