20001828191001 has 16 divisors (see below), whose sum is σ = 26846205523968. Its totient is φ = 13246004682000.

The previous prime is 20001828190991. The next prime is 20001828191039. The reversal of 20001828191001 is 10019182810002.

It is not a de Polignac number, because 20001828191001 - 2¹⁰ = 20001828189977 is a prime.

It is a super-2 number, since 2×20001828191001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20001828191041) 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, 26760166 + ... + 27497456.

It is an arithmetic number, because the mean of its divisors is an integer number (1677887845248).

Almost surely, 2^{20001828191001} is an apocalyptic number.

It is an amenable number.

20001828191001 is a deficient number, since it is larger than the sum of its proper divisors (6844377332967).

20001828191001 is a wasteful number, since it uses less digits than its factorization.

20001828191001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797332.

The product of its (nonzero) digits is 2304, while the sum is 33.

The spelling of 20001828191001 in words is "twenty trillion, one billion, eight hundred twenty-eight million, one hundred ninety-one thousand, one".