1745111663985 has 16 divisors (see below), whose sum is σ = 2939135434560. Its totient is φ = 881740630080.

The previous prime is 1745111663929. The next prime is 1745111663987. The reversal of 1745111663985 is 5893661115471.

It is not a de Polignac number, because 1745111663985 - 2⁷ = 1745111663857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1745111663987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3061599126 + ... + 3061599695.

It is an arithmetic number, because the mean of its divisors is an integer number (183695964660).

Almost surely, 2^{1745111663985} is an apocalyptic number.

1745111663985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1745111663985 is a deficient number, since it is larger than the sum of its proper divisors (1194023770575).

1745111663985 is a wasteful number, since it uses less digits than its factorization.

1745111663985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123198848.

The product of its digits is 5443200, while the sum is 57.

The spelling of 1745111663985 in words is "one trillion, seven hundred forty-five billion, one hundred eleven million, six hundred sixty-three thousand, nine hundred eighty-five".