20125801995 has 16 divisors (see below), whose sum is σ = 34678305312. Its totient is φ = 9908087040.

The previous prime is 20125801967. The next prime is 20125801999. The reversal of 20125801995 is 59910852102.

It is not a de Polignac number, because 20125801995 - 2⁹ = 20125801483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20125801999) 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, 51604426 + ... + 51604815.

It is an arithmetic number, because the mean of its divisors is an integer number (2167394082).

Almost surely, 2^20125801995 is an apocalyptic number.

20125801995 is a deficient number, since it is larger than the sum of its proper divisors (14552503317).

20125801995 is a wasteful number, since it uses less digits than its factorization.

20125801995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103209262.

The product of its (nonzero) digits is 64800, while the sum is 42.

The spelling of 20125801995 in words is "twenty billion, one hundred twenty-five million, eight hundred one thousand, nine hundred ninety-five".