1201854066017 has 32 divisors (see below), whose sum is σ = 1414401398784. Its totient is φ = 1009087027200.

The previous prime is 1201854066001. The next prime is 1201854066019. The reversal of 1201854066017 is 7106604581021.

It is a cyclic number.

It is not a de Polignac number, because 1201854066017 - 2⁴ = 1201854066001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201854066019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2465792 + ... + 2912702.

It is an arithmetic number, because the mean of its divisors is an integer number (44200043712).

Almost surely, 2^{1201854066017} is an apocalyptic number.

1201854066017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1201854066017 is a deficient number, since it is larger than the sum of its proper divisors (212547332767).

1201854066017 is a wasteful number, since it uses less digits than its factorization.

1201854066017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447209.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 1201854066017 in words is "one trillion, two hundred one billion, eight hundred fifty-four million, sixty-six thousand, seventeen".