20000101995 has 96 divisors (see below), whose sum is σ = 36624586752. Its totient is φ = 10086126336.

The previous prime is 20000101991. The next prime is 20000102027. The reversal of 20000101995 is 59910100002.

It is a happy number.

It is not a de Polignac number, because 20000101995 - 2² = 20000101991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20000101991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7509034 + ... + 7511696.

It is an arithmetic number, because the mean of its divisors is an integer number (381506112).

Almost surely, 2^20000101995 is an apocalyptic number.

20000101995 is a deficient number, since it is larger than the sum of its proper divisors (16624484757).

20000101995 is a wasteful number, since it uses less digits than its factorization.

20000101995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841 (or 2838 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

Adding to 20000101995 its reverse (59910100002), we get a palindrome (79910201997).

The spelling of 20000101995 in words is "twenty billion, one hundred one thousand, nine hundred ninety-five".