1205751553711 has 8 divisors (see below), whose sum is σ = 1276693295760. Its totient is φ = 1134811498368.

The previous prime is 1205751553703. The next prime is 1205751553717. The reversal of 1205751553711 is 1173551575021.

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 1205751553711 - 2³ = 1205751553703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205751553717) 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, 1236405 + ... + 1984993.

It is an arithmetic number, because the mean of its divisors is an integer number (159586661970).

Almost surely, 2^{1205751553711} is an apocalyptic number.

1205751553711 is a deficient number, since it is larger than the sum of its proper divisors (70941742049).

1205751553711 is an equidigital number, since it uses as much as digits as its factorization.

1205751553711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843353.

The product of its (nonzero) digits is 183750, while the sum is 43.

The spelling of 1205751553711 in words is "one trillion, two hundred five billion, seven hundred fifty-one million, five hundred fifty-three thousand, seven hundred eleven".