20061500101 has 2 divisors, whose sum is σ = 20061500102. Its totient is φ = 20061500100.

The previous prime is 20061500071. The next prime is 20061500117. The reversal of 20061500101 is 10100516002.

It is a happy number.

It is an a-pointer prime, because the next prime (20061500117) can be obtained adding 20061500101 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16932775876 + 3128724225 = 130126^2 + 55935^2 .

It is a cyclic number.

It is not a de Polignac number, because 20061500101 - 2¹³ = 20061491909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20061500161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10030750050 + 10030750051.

It is an arithmetic number, because the mean of its divisors is an integer number (10030750051).

Almost surely, 2^20061500101 is an apocalyptic number.

It is an amenable number.

20061500101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20061500101 is an equidigital number, since it uses as much as digits as its factorization.

20061500101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The spelling of 20061500101 in words is "twenty billion, sixty-one million, five hundred thousand, one hundred one".