20151109063 has 2 divisors, whose sum is σ = 20151109064. Its totient is φ = 20151109062.

The previous prime is 20151109051. The next prime is 20151109159. The reversal of 20151109063 is 36090115102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20151109063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20151109463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075554531 + 10075554532.

It is an arithmetic number, because the mean of its divisors is an integer number (10075554532).

Almost surely, 2^20151109063 is an apocalyptic number.

20151109063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20151109063 is an equidigital number, since it uses as much as digits as its factorization.

20151109063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 20151109063 in words is "twenty billion, one hundred fifty-one million, one hundred nine thousand, sixty-three".