1611117742147 has 8 divisors (see below), whose sum is σ = 1705941432000. Its totient is φ = 1516299836544.

The previous prime is 1611117742127. The next prime is 1611117742219. The reversal of 1611117742147 is 7412477111161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1611117742147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1611117742127) 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, 865947 + ... + 1993012.

It is an arithmetic number, because the mean of its divisors is an integer number (213242679000).

Almost surely, 2^{1611117742147} is an apocalyptic number.

1611117742147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1611117742147 is a deficient number, since it is larger than the sum of its proper divisors (94823689853).

1611117742147 is a wasteful number, since it uses less digits than its factorization.

1611117742147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892125.

The product of its digits is 65856, while the sum is 43.

The spelling of 1611117742147 in words is "one trillion, six hundred eleven billion, one hundred seventeen million, seven hundred forty-two thousand, one hundred forty-seven".