20194250011 has 8 divisors (see below), whose sum is σ = 22009674960. Its totient is φ = 18416256672.

The previous prime is 20194250009. The next prime is 20194250053. The reversal of 20194250011 is 11005249102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20194250011 - 2¹ = 20194250009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20194250081) 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, 9356776 + ... + 9358933.

It is an arithmetic number, because the mean of its divisors is an integer number (2751209370).

Almost surely, 2^20194250011 is an apocalyptic number.

20194250011 is a deficient number, since it is larger than the sum of its proper divisors (1815424949).

20194250011 is a wasteful number, since it uses less digits than its factorization.

20194250011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18715805.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 20194250011 its reverse (11005249102), we get a palindrome (31199499113).

The spelling of 20194250011 in words is "twenty billion, one hundred ninety-four million, two hundred fifty thousand, eleven".