10000061010505 has 4 divisors (see below), whose sum is σ = 12000073212612. Its totient is φ = 8000048808400.

The previous prime is 10000061010503. The next prime is 10000061010539. The reversal of 10000061010505 is 50501016000001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5037021637561 + 4963039372944 = 2244331^2 + 2227788^2 .

It is not a de Polignac number, because 10000061010505 - 2¹ = 10000061010503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000061010503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000006101046 + ... + 1000006101055.

It is an arithmetic number, because the mean of its divisors is an integer number (3000018303153).

Almost surely, 2^{10000061010505} is an apocalyptic number.

It is an amenable number.

10000061010505 is a deficient number, since it is larger than the sum of its proper divisors (2000012202107).

10000061010505 is an equidigital number, since it uses as much as digits as its factorization.

10000061010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000012202106.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 10000061010505 its reverse (50501016000001), we get a palindrome (60501077010506).

The spelling of 10000061010505 in words is "ten trillion, sixty-one million, ten thousand, five hundred five".