1001162798775 has 18 divisors (see below), whose sum is σ = 1793193813320. Its totient is φ = 533953492560.

The previous prime is 1001162798767. The next prime is 1001162798789. The reversal of 1001162798775 is 5778972611001.

1001162798775 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 1 + 627 + 9 + 8 + 7 + 7 + 5 = 666.

It is not a de Polignac number, because 1001162798775 - 2³ = 1001162798767 is a prime.

It is a super-3 number, since 3×1001162798775³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2224805995 + ... + 2224806444.

Almost surely, 2^{1001162798775} is an apocalyptic number.

1001162798775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1001162798775 is a deficient number, since it is larger than the sum of its proper divisors (792031014545).

1001162798775 is a wasteful number, since it uses less digits than its factorization.

1001162798775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449612455 (or 4449612447 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 54.

The spelling of 1001162798775 in words is "one trillion, one billion, one hundred sixty-two million, seven hundred ninety-eight thousand, seven hundred seventy-five".