100601010506 has 4 divisors (see below), whose sum is σ = 150901515762. Its totient is φ = 50300505252.

The previous prime is 100601010491. The next prime is 100601010529. The reversal of 100601010506 is 605010106001.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 74859696025 + 25741314481 = 273605^2 + 160441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25150252625 + ... + 25150252628.

Almost surely, 2^100601010506 is an apocalyptic number.

100601010506 is a deficient number, since it is larger than the sum of its proper divisors (50300505256).

100601010506 is an equidigital number, since it uses as much as digits as its factorization.

100601010506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50300505255.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 100601010506 its reverse (605010106001), we get a palindrome (705611116507).

The spelling of 100601010506 in words is "one hundred billion, six hundred one million, ten thousand, five hundred six".